From w5jo at brightok.net Fri Jul 14 17:07:29 2017 From: w5jo at brightok.net (w5jo at brightok.net) Date: Fri, 14 Jul 2017 16:07:29 -0500 Subject: [AMRadio] The group Message-ID: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> I have been talking to Brian, W5AMI about this list lately. Given the lack of activity and postings we have decided to terminate it. Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. Otherwise it will go away soon. 73 all, Jim W5JO Moderator From steinerviolinist at gmail.com Fri Jul 14 17:11:01 2017 From: steinerviolinist at gmail.com (Oliver Steiner) Date: Fri, 14 Jul 2017 17:11:01 -0400 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: I'm grateful to have the list and hope that it continues. 73, Ollie W2QXR On 7/14/17, w5jo at brightok.net wrote: > I have been talking to Brian, W5AMI about this list lately. > > Given the lack of activity and postings we have decided to terminate it. > > Even Boatanchors has diminished postings. So if you do not want to > terminate this group, then post an answer. > > Otherwise it will go away soon. > > 73 all, > > Jim > W5JO > Moderator > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to steinerviolinist at gmail.com > -- http://oliversteiner.com From gblau at w3am.com Fri Jul 14 17:13:22 2017 From: gblau at w3am.com (Gary Blau) Date: Fri, 14 Jul 2017 17:13:22 -0400 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: What's the harm in keeping it going? It can't cost anything. I suspect there are a lot of lurkers (like me) who also would hate to see it go. g On Fri, Jul 14, 2017 at 5:07 PM, wrote: > I have been talking to Brian, W5AMI about this list lately. > > Given the lack of activity and postings we have decided to terminate it. > > Even Boatanchors has diminished postings. So if you do not want to > terminate this group, then post an answer. > > Otherwise it will go away soon. > > 73 all, > > Jim > W5JO > Moderator > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gblau at w3am.com > From w5dvg at sbcglobal.net Fri Jul 14 17:14:09 2017 From: w5dvg at sbcglobal.net (W5DVG - Patrick Rogers) Date: Fri, 14 Jul 2017 16:14:09 -0500 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: <68354ED8446949EB930E3A1570778317@780Radio> Would hope it would continue. 73's de Amateur Radio Station W5DVG Patrick Rogers 13219 Briar Hollow Austin, Texas 78729 Williamson County EM10cl ARRL, the national association for Amateur RadioT -----Original Message----- From: amradio-bounces at mailman.qth.net [mailto:amradio-bounces at mailman.qth.net] On Behalf Of w5jo at brightok.net Sent: Friday, July 14, 2017 4:07 PM To: AM Radio List Subject: [AMRadio] The group I have been talking to Brian, W5AMI about this list lately. Given the lack of activity and postings we have decided to terminate it. Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. Otherwise it will go away soon. 73 all, Jim W5JO Moderator ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to w5dvg at sbcglobal.net From oldrotorheadsarge at outlook.com Fri Jul 14 17:14:09 2017 From: oldrotorheadsarge at outlook.com (Robert Bethman) Date: Fri, 14 Jul 2017 21:14:09 +0000 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: My view is leave it up. Personally, I have been very busy with renovating the outside part of a 24 year old deck. This has not allowed time for either postings nor AM activity. That particular chore WILL be soon completed, and allow for the erection of antennas and time to get on air. That is my reasoning for keeping it alive. Others may have entirely different views. Regards, Bob A.R.S. N0DGN [ Licensed Since 1980 ] Bob USA RET. Callsign: WitchDoctor -----Original Message----- From: amradio-bounces at mailman.qth.net [mailto:amradio-bounces at mailman.qth.net] On Behalf Of w5jo at brightok.net Sent: Friday, July 14, 2017 5:07 PM To: AM Radio List Subject: [AMRadio] The group I have been talking to Brian, W5AMI about this list lately. Given the lack of activity and postings we have decided to terminate it. Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. Otherwise it will go away soon. 73 all, Jim W5JO Moderator ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to oldrotorheadsarge at outlook.com From w2xj at w2xj.net Fri Jul 14 17:14:31 2017 From: w2xj at w2xj.net (W2xj) Date: Fri, 14 Jul 2017 17:14:31 -0400 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: <6F1A2AE6-EBEA-4C53-B591-2E7A87236D3A@w2xj.net> I for one enjoy this group. Unless there is a cost issue, why not just let it sit there? Sent from my iPhone > On Jul 14, 2017, at 17:07, wrote: > > I have been talking to Brian, W5AMI about this list lately. > > Given the lack of activity and postings we have decided to terminate it. > > Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. > > Otherwise it will go away soon. > > 73 all, > > Jim > W5JO > Moderator > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net > From tonne at comcast.net Fri Jul 14 17:17:14 2017 From: tonne at comcast.net (tonne at comcast.net) Date: Fri, 14 Jul 2017 21:17:14 +0000 (UTC) Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: <1704101558.3075997.1500067034015.JavaMail.zimbra@comcast.net> Well nuts :-) The quality way to communicate ! QEX has accepted an article of mine about processing of audio which is especially applicable to AM. And it is being referenced in the updated (a tiny bit of material I sent to Ward) Speech chapter in the 2018 ARRL Handbook. Do we need to have some discussions, for example, on subjects such as that? Or is it "kinda hopeless" and the die is cast? Speak up troopers ! - Jim Tonne W4ENE ----- Original Message ----- From: w5jo at brightok.net To: "AM Radio List" Sent: Friday, July 14, 2017 5:07:29 PM Subject: [AMRadio] The group I have been talking to Brian, W5AMI about this list lately. Given the lack of activity and postings we have decided to terminate it. Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. Otherwise it will go away soon. 73 all, Jim W5JO Moderator ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to tonne at comcast.net From ars.w5omr at gmail.com Fri Jul 14 17:18:24 2017 From: ars.w5omr at gmail.com (ARS W5OMR) Date: Fri, 14 Jul 2017 16:18:24 -0500 Subject: [AMRadio] The group In-Reply-To: References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: Please KEEP it. As has been shown in recent past, and this thread, we're all here. We're just in the dogged days of summer when there is always a lull in activity. 73 = Best Regards, Geoff(/m5) On Jul 14, 2017 16:13, "Gary Blau" wrote: > What's the harm in keeping it going? It can't cost anything. > I suspect there are a lot of lurkers (like me) who also would hate to see > it go. > > g > > On Fri, Jul 14, 2017 at 5:07 PM, wrote: > > > I have been talking to Brian, W5AMI about this list lately. > > > > Given the lack of activity and postings we have decided to terminate it. > > > > Even Boatanchors has diminished postings. So if you do not want to > > terminate this group, then post an answer. > > > > Otherwise it will go away soon. > > > > 73 all, > > > > Jim > > W5JO > > Moderator > > ______________________________________________________________ > > Our Main Website: http://www.amfone.net > > AMRadio mailing list > > Archives: http://mailman.qth.net/pipermail/amradio/ > > List Rules (must read!): http://w5ami.net/amradiofaq.html > > List Home: http://mailman.qth.net/mailman/listinfo/amradio > > Post: AMRadio at mailman.qth.net > > To unsubscribe, send an email to amradio-request at mailman.qth.net with > > the word unsubscribe in the message body. > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to gblau at w3am.com > > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ars.w5omr at gmail.com > From wz5q at wz5q.net Fri Jul 14 17:21:21 2017 From: wz5q at wz5q.net (Mike - WZ5Q) Date: Fri, 14 Jul 2017 16:21:21 -0500 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: <596935D1.4080901@wz5q.net> It's not eating anything. Leave it as it is. Mike WZ5Q On 7/14/2017 4:07 PM, w5jo at brightok.net wrote: > I have been talking to Brian, W5AMI about this list lately. > > Given the lack of activity and postings we have decided to terminate it. > > Even Boatanchors has diminished postings. So if you do not want to > terminate this group, then post an answer. > > Otherwise it will go away soon. > > 73 all, > > Jim > W5JO > Moderator > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wz5q at wz5q.net > From ranickel at comcast.net Fri Jul 14 17:24:07 2017 From: ranickel at comcast.net (Robert Nickels) Date: Fri, 14 Jul 2017 16:24:07 -0500 Subject: [AMRadio] The group In-Reply-To: <1704101558.3075997.1500067034015.JavaMail.zimbra@comcast.net> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> <1704101558.3075997.1500067034015.JavaMail.zimbra@comcast.net> Message-ID: <07e51daf-6797-fc3b-d291-ca660b2924ea@comcast.net> I vote to keep this email reflector going. I seldom look at the online forum for some of the same reasons mentioned. Most similar groups have been pretty good at self-policing, as long as the basic agreement to stay on topic is enforced. And many knowledgeable resources who will never be "frequent posters" will pop up when they have something to contribute. 73, Bob W9RAN From ne1s at securespeed.us Fri Jul 14 17:33:44 2017 From: ne1s at securespeed.us (Larry Szendrei) Date: Fri, 14 Jul 2017 17:33:44 -0400 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: <5f9754cc-c7e3-31ac-8b71-b2f1b79d22a7@securespeed.us> I agree with everyone who has commented so far - keep it up, as long as the Brian, Jim, and the others who put in the effort to keep this list are willing and able. I read every message, but only comment if I have something intelligent to say, which isn't often ;-) Generally, I try to do more of my ham radio communications on the air rather than through this medium, but to me the list serves a useful purpose, and "it's all good." 73 all, -Larry/NE1S From cemilton at aol.com Fri Jul 14 17:40:12 2017 From: cemilton at aol.com (cemilton at aol.com) Date: Fri, 14 Jul 2017 17:40:12 -0400 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: <15d430b7a6a-4f4d-533f@webprd-m87.mail.aol.com> I would vote to leave it up............... it's true, many reflectors are seeing a diminished number of posts these days but activity seems to come and go on a cyclical basis. As an example, the ARC5 reflector has been in the tank for long periods of time but recently (past 2-3 months) there has been a revival of sorts and many posts about the "ARC 5" genre of gear have been made. To the extent that some are now reviving those pieces of gear and putting them back on the air. It's prompted me to dig out and restore a couple of receivers and the matching transmitters are next for this winter's projects. I'm an AM'er, but readily admit to not being as active as I want. Sure, age and other distractions (or excuses) may be an answer but when the forums we can turn to are no longer there then we have nothing to rely on when the bug bites us enough to get active. Well, do what has to be done if there is no other answer. But my vote is to leave it in place. Thanks for asking for input. 73 de W4MIL Chuck ????? ???? -----Original Message----- From: w5jo To: AM Radio List Sent: Fri, Jul 14, 2017 5:08 pm Subject: [AMRadio] The group I have been talking to Brian, W5AMI about this list lately. Given the lack of activity and postings we have decided to terminate it. Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. Otherwise it will go away soon. 73 all, Jim W5JO Moderator ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to cemilton at aol.com From ae4cw at att.net Fri Jul 14 17:41:39 2017 From: ae4cw at att.net (Chuck, AE4CW) Date: Fri, 14 Jul 2017 17:41:39 -0400 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: <01e401d2fce9$faa25d90$efe718b0$@att.net> Please, please keep this group alive. I find it a very useful vehicle for learning from those with more experience than me. --- Chuck, AE4CW -----Original Message----- From: amradio-bounces at mailman.qth.net [mailto:amradio-bounces at mailman.qth.net] On Behalf Of w5jo at brightok.net Sent: Friday, July 14, 2017 05:07:PM To: AM Radio List Subject: [AMRadio] The group I have been talking to Brian, W5AMI about this list lately. Given the lack of activity and postings we have decided to terminate it. Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. Otherwise it will go away soon. 73 all, Jim W5JO Moderator ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ae4cw at att.net From donroden at hiwaay.net Fri Jul 14 17:47:40 2017 From: donroden at hiwaay.net (donroden at hiwaay.net) Date: Fri, 14 Jul 2017 16:47:40 -0500 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: <20170714164740.Horde.U71udDT7aJ9-b5Hr-MbEHFS@webmail.hiwaay.net> This group has a wealth of AM knowledge unsurpassed anywhere on the web. And I have three transmitters to get operational..... LOL !! Don W4DNR Quoting w5jo at brightok.net: > I have been talking to Brian, W5AMI about this list lately. > > Given the lack of activity and postings we have decided to terminate it. > > Even Boatanchors has diminished postings. So if you do not want to > terminate this group, then post an answer. > > Otherwise it will go away soon. > > 73 all, > > Jim > W5JO > Moderator ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donroden at hiwaay.net DonR From ne1s at securespeed.us Fri Jul 14 17:48:55 2017 From: ne1s at securespeed.us (Larry Szendrei) Date: Fri, 14 Jul 2017 17:48:55 -0400 Subject: [AMRadio] The group In-Reply-To: <1704101558.3075997.1500067034015.JavaMail.zimbra@comcast.net> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> <1704101558.3075997.1500067034015.JavaMail.zimbra@comcast.net> Message-ID: <5b3a3ad9-b672-cdd9-421a-f63debc65b49@securespeed.us> On 7/14/17 5:17 PM, tonne at comcast.net wrote: > Well nuts > > The quality way to communicate ! QEX has accepted an article of mine > about processing of audio which is especially applicable to AM. And it > is being referenced in the updated (a tiny bit of material I sent to > Ward) > Speech chapter in the 2018 ARRL Handbook. Jim, I would love to read some posts from you on this subject. > > Do we need to have some discussions, for example, on subjects such > as that? Or is it "kinda hopeless" and the die is cast? I think this is the place for those types of subjects, insofar as email lists are concerned. There are plenty of knowledgeable and experienced folks here. > > Speak up troopers ! I just did! 73, -Larry/NE1S From w2xj at w2xj.net Fri Jul 14 17:52:40 2017 From: w2xj at w2xj.net (W2xj) Date: Fri, 14 Jul 2017 17:52:40 -0400 Subject: [AMRadio] The group In-Reply-To: <1704101558.3075997.1500067034015.JavaMail.zimbra@comcast.net> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> <1704101558.3075997.1500067034015.JavaMail.zimbra@comcast.net> Message-ID: <19F2F77A-BA73-4150-B604-C30E1A81040C@w2xj.net> Jim It would be interesting to see some of that article here if you are able. Sent from my iPhone > On Jul 14, 2017, at 17:17, tonne at comcast.net wrote: > > > Well nuts :-) > > The quality way to communicate ! QEX has accepted an article of mine > about processing of audio which is especially applicable to AM. And it > is being referenced in the updated (a tiny bit of material I sent to Ward) > Speech chapter in the 2018 ARRL Handbook. > > Do we need to have some discussions, for example, on subjects such > as that? Or is it "kinda hopeless" and the die is cast? > > Speak up troopers ! > > - Jim Tonne W4ENE > > ----- Original Message ----- > > From: w5jo at brightok.net > To: "AM Radio List" > Sent: Friday, July 14, 2017 5:07:29 PM > Subject: [AMRadio] The group > > I have been talking to Brian, W5AMI about this list lately. > > Given the lack of activity and postings we have decided to terminate it. > > Even Boatanchors has diminished postings. So if you do not want to > terminate this group, then post an answer. > > Otherwise it will go away soon. > > 73 all, > > Jim > W5JO > Moderator > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to tonne at comcast.net > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net > From paul at paulbaldock.com Fri Jul 14 17:58:48 2017 From: paul at paulbaldock.com (Paul Baldock) Date: Fri, 14 Jul 2017 14:58:48 -0700 Subject: [AMRadio] [AM Radio] The group In-Reply-To: <07e51daf-6797-fc3b-d291-ca660b2924ea@comcast.net> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> <1704101558.3075997.1500067034015.JavaMail.zimbra@comcast.net> <07e51daf-6797-fc3b-d291-ca660b2924ea@comcast.net> Message-ID: <59693ec6.5206630a.98e10.75d0@mx.google.com> I think there would be more interest in this group if members would actually get on the air, and maybe on a band that you might talk to somebody other than across town. Despite what you think, propagation is not zero in this sunspot minimum. Almost every day of the week I can work somebody in Europe form here on the West Coast on 40m and 20m using SSB, CW and digital modes. A couple of times a week I call CQ on the AM frequencies on those bands without a reply. Similarly during the summer months there is terrific 10m Sporadic E propagation around the US, but again no AM activity. that I have found So from my perspective if you started actually using AM it might generate more to talk about on this reflector. - Paul KW7Y From wb6orz at comcast.net Fri Jul 14 18:20:45 2017 From: wb6orz at comcast.net (Les Zwiebel WB6ORZ) Date: Fri, 14 Jul 2017 22:20:45 +0000 (UTC) Subject: [AMRadio] The group Message-ID: <587062479.48264735.1500070845166.JavaMail.zimbra@comcast.net> PLEASE, I mean please, keep the group going. I appreciate the group and all that you and Brian do to maintain it. (((73))) Les -----Original Message----- From: w5jo at brightok.net To: amradio at mailman.qth.net Cc: Sent: 2017-07-14 2:07:49 PM Subject: [AMRadio] The group I have been talking to Brian, W5AMI about this list lately. Given the lack of activity and postings we have decided to terminate it. Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. Otherwise it will go away soon. 73 all, Jim W5JO Moderator ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to wb6orz at comcast.net From Commtekman at aol.com Fri Jul 14 18:40:21 2017 From: Commtekman at aol.com (Commtekman at aol.com) Date: Fri, 14 Jul 2017 18:40:21 -0400 Subject: [AMRadio] The group Message-ID: <1d72.4c49af02.469aa255@aol.com> I vote to keep it going. Right now it is 80 degrees in my shack, handyman coming Sunday to install air conditioner. Bob K6OSM since 1958 In a message dated 7/14/2017 2:08:32 P.M. Pacific Daylight Time, w5jo at brightok.net writes: I have been talking to Brian, W5AMI about this list lately. Given the lack of activity and postings we have decided to terminate it. Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. Otherwise it will go away soon. 73 all, Jim W5JO Moderator ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to commtekman at aol.com From manualman at juno.com Fri Jul 14 18:50:51 2017 From: manualman at juno.com (manualman at juno.com) Date: Fri, 14 Jul 2017 18:50:51 -0400 Subject: [AMRadio] The group Message-ID: Looking back through the archives (AM and others) over the years, the number of postings have dropped on a number of text-based reflectors. Over the last few years, the number of Internet based forums for a number of our traditional modes and manufacturers has also increased in proportion. They provide the ability to post pictures, files, and other amenities not available to text-based reflectors so, for many, they have an advantage and appeal especially for those who may have entered into AM, boatanchors, Heathkits, etc. over the last few years and aren't familiar or care about text-based only reflectors. Obviously Jim, given the number of responses to your post already, it shows concern of something that might go away, but in the long term, it still doesn't guarantee any real up tick in overall activity. If Brian and others feel the need to move on to other things, it's possible the AM reflector ownership and moderation could be managed by others if they're willing to step forward. Pete, wa2cwa On Fri, 14 Jul 2017 16:07:29 -0500 writes: > I have been talking to Brian, W5AMI about this list lately. > > Given the lack of activity and postings we have decided to terminate > it. > > Even Boatanchors has diminished postings. So if you do not want to > > terminate this group, then post an answer. > > Otherwise it will go away soon. > > 73 all, > > Jim > W5JO > Moderator From wd4scz at aol.com Fri Jul 14 18:57:57 2017 From: wd4scz at aol.com (Emil Dular) Date: Fri, 14 Jul 2017 18:57:57 -0400 Subject: [AMRadio] The group In-Reply-To: References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: I am on several lists, and mainly lurk to learn from folks more informed and better qualified than me. Emil WD4SCZ On 14-Jul-17 17:11, Oliver Steiner wrote: > I'm grateful to have the list and hope that it continues. > > 73, > Ollie > W2QXR > > On 7/14/17, w5jo at brightok.net wrote: >> I have been talking to Brian, W5AMI about this list lately. >> >> Given the lack of activity and postings we have decided to terminate it. >> >> Even Boatanchors has diminished postings. So if you do not want to >> terminate this group, then post an answer. >> >> Otherwise it will go away soon. >> >> 73 all, >> >> Jim >> W5JO >> Moderator >> >> ______________________________________________________________ >> Our Main Website: http://www.amfone.net >> AMRadio mailing list >> Archives: http://mailman.qth.net/pipermail/amradio/ >> List Rules (must read!): http://w5ami.net/amradiofaq.html >> List Home: http://mailman.qth.net/mailman/listinfo/amradio >> Post: AMRadio at mailman.qth.net >> To unsubscribe, send an email to amradio-request at mailman.qth.net with >> the word unsubscribe in the message body. >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to steinerviolinist at gmail.com >> > From jim.n.wooten at juno.com Fri Jul 14 18:56:06 2017 From: jim.n.wooten at juno.com (jim.n.wooten at juno.com) Date: Fri, 14 Jul 2017 22:56:06 GMT Subject: [AMRadio] Keep the Group Going Message-ID: <20170714.175606.14996.0@webmail09.vgs.untd.com> I vote to keep this AM chat list going. 73, JimW5COA From W4AWM at aol.com Fri Jul 14 19:06:38 2017 From: W4AWM at aol.com (W4AWM at aol.com) Date: Fri, 14 Jul 2017 19:06:38 -0400 Subject: [AMRadio] Reflector Message-ID: Reflectors are like hamfests. If only one other person shows up and he has what you want or you have what he wants, it was a good hamfest. The same is true of reflectors. If there is and answer to your question or you can help someone out with an answer or a part, the reflector served it's purpose. P_lease do not take it down. 73 John, W4AWM/8 Sent via satellite from Paw Paw, WV From kc2dhu at aol.com Fri Jul 14 19:12:14 2017 From: kc2dhu at aol.com (Kc2dhu) Date: Fri, 14 Jul 2017 19:12:14 -0400 Subject: [AMRadio] AMRadio Digest, Vol 162, Issue 3 In-Reply-To: References: Message-ID: <15d435fbfd9-2bd7-60ec@webprd-m11.mail.aol.com> I hope this list continues. I never post because I read every post and am learning alot from what I do read. You folks rock. Keep AM alive. Jim KC2DHU -----Original Message----- From: amradio-request To: amradio Sent: Fri, Jul 14, 2017 6:27 pm Subject: AMRadio Digest, Vol 162, Issue 3 Send AMRadio mailing list submissions to amradio at mailman.qth.net To subscribe or unsubscribe via the World Wide Web, visit http://mailman.qth.net/mailman/listinfo/amradio or, via email, send a message with subject or body 'help' to amradio-request at mailman.qth.net You can reach the person managing the list at amradio-owner at mailman.qth.net When replying, please edit your Subject line so it is more specific than "Re: Contents of AMRadio digest..." Today's Topics: 1. Re: The group (Robert Nickels) 2. Re: The group (Larry Szendrei) 3. Re: The group (cemilton at aol.com) 4. Re: The group (Chuck, AE4CW) 5. Re: The group (donroden at hiwaay.net) 6. Re: The group (Larry Szendrei) ---------------------------------------------------------------------- Message: 1 Date: Fri, 14 Jul 2017 16:24:07 -0500 From: Robert Nickels To: amradio at mailman.qth.net Subject: Re: [AMRadio] The group Message-ID: <07e51daf-6797-fc3b-d291-ca660b2924ea at comcast.net> Content-Type: text/plain; charset=utf-8; format=flowed I vote to keep this email reflector going. I seldom look at the online forum for some of the same reasons mentioned. Most similar groups have been pretty good at self-policing, as long as the basic agreement to stay on topic is enforced. And many knowledgeable resources who will never be "frequent posters" will pop up when they have something to contribute. 73, Bob W9RAN ------------------------------ Message: 2 Date: Fri, 14 Jul 2017 17:33:44 -0400 From: Larry Szendrei To: amradio at mailman.qth.net Subject: Re: [AMRadio] The group Message-ID: <5f9754cc-c7e3-31ac-8b71-b2f1b79d22a7 at securespeed.us> Content-Type: text/plain; charset=utf-8; format=flowed I agree with everyone who has commented so far - keep it up, as long as the Brian, Jim, and the others who put in the effort to keep this list are willing and able. I read every message, but only comment if I have something intelligent to say, which isn't often ;-) Generally, I try to do more of my ham radio communications on the air rather than through this medium, but to me the list serves a useful purpose, and "it's all good." 73 all, -Larry/NE1S ------------------------------ Message: 3 Date: Fri, 14 Jul 2017 17:40:12 -0400 From: cemilton at aol.com To: w5jo at brightok.net, amradio at mailman.qth.net Subject: Re: [AMRadio] The group Message-ID: <15d430b7a6a-4f4d-533f at webprd-m87.mail.aol.com> Content-Type: text/plain; charset=utf-8 I would vote to leave it up............... it's true, many reflectors are seeing a diminished number of posts these days but activity seems to come and go on a cyclical basis. As an example, the ARC5 reflector has been in the tank for long periods of time but recently (past 2-3 months) there has been a revival of sorts and many posts about the "ARC 5" genre of gear have been made. To the extent that some are now reviving those pieces of gear and putting them back on the air. It's prompted me to dig out and restore a couple of receivers and the matching transmitters are next for this winter's projects. I'm an AM'er, but readily admit to not being as active as I want. Sure, age and other distractions (or excuses) may be an answer but when the forums we can turn to are no longer there then we have nothing to rely on when the bug bites us enough to get active. Well, do what has to be done if there is no other answer. But my vote is to leave it in place. Thanks for asking for input. 73 de W4MIL Chuck ????? ???? -----Original Message----- From: w5jo To: AM Radio List Sent: Fri, Jul 14, 2017 5:08 pm Subject: [AMRadio] The group I have been talking to Brian, W5AMI about this list lately. Given the lack of activity and postings we have decided to terminate it. Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. Otherwise it will go away soon. 73 all, Jim W5JO Moderator ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to cemilton at aol.com ------------------------------ Message: 4 Date: Fri, 14 Jul 2017 17:41:39 -0400 From: "Chuck, AE4CW" To: , "'AM Radio List'" Subject: Re: [AMRadio] The group Message-ID: <01e401d2fce9$faa25d90$efe718b0$@att.net> Content-Type: text/plain; charset="UTF-8" Please, please keep this group alive. I find it a very useful vehicle for learning from those with more experience than me. --- Chuck, AE4CW -----Original Message----- From: amradio-bounces at mailman.qth.net [mailto:amradio-bounces at mailman.qth.net] On Behalf Of w5jo at brightok.net Sent: Friday, July 14, 2017 05:07:PM To: AM Radio List Subject: [AMRadio] The group I have been talking to Brian, W5AMI about this list lately. Given the lack of activity and postings we have decided to terminate it. Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. Otherwise it will go away soon. 73 all, Jim W5JO Moderator ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ae4cw at att.net ------------------------------ Message: 5 Date: Fri, 14 Jul 2017 16:47:40 -0500 From: donroden at hiwaay.net To: amradio at mailman.qth.net Subject: Re: [AMRadio] The group Message-ID: <20170714164740.Horde.U71udDT7aJ9-b5Hr-MbEHFS at webmail.hiwaay.net> Content-Type: text/plain; charset=utf-8; format=flowed; DelSp=Yes This group has a wealth of AM knowledge unsurpassed anywhere on the web. And I have three transmitters to get operational..... LOL !! Don W4DNR Quoting w5jo at brightok.net: > I have been talking to Brian, W5AMI about this list lately. > > Given the lack of activity and postings we have decided to terminate it. > > Even Boatanchors has diminished postings. So if you do not want to > terminate this group, then post an answer. > > Otherwise it will go away soon. > > 73 all, > > Jim > W5JO > Moderator ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donroden at hiwaay.net DonR ------------------------------ Message: 6 Date: Fri, 14 Jul 2017 17:48:55 -0400 From: Larry Szendrei To: amradio at mailman.qth.net Subject: Re: [AMRadio] The group Message-ID: <5b3a3ad9-b672-cdd9-421a-f63debc65b49 at securespeed.us> Content-Type: text/plain; charset=utf-8; format=flowed On 7/14/17 5:17 PM, tonne at comcast.net wrote: > Well nuts > > The quality way to communicate ! QEX has accepted an article of mine > about processing of audio which is especially applicable to AM. And it > is being referenced in the updated (a tiny bit of material I sent to > Ward) > Speech chapter in the 2018 ARRL Handbook. Jim, I would love to read some posts from you on this subject. > > Do we need to have some discussions, for example, on subjects such > as that? Or is it "kinda hopeless" and the die is cast? I think this is the place for those types of subjects, insofar as email lists are concerned. There are plenty of knowledgeable and experienced folks here. > > Speak up troopers ! I just did! 73, -Larry/NE1S ------------------------------ ______________________________________________________________ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio at mailman.qth.net End of AMRadio Digest, Vol 162, Issue 3 *************************************** From k6xyz at sbcglobal.net Fri Jul 14 19:17:34 2017 From: k6xyz at sbcglobal.net (David Harmon) Date: Fri, 14 Jul 2017 18:17:34 -0500 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: <001801d2fcf7$62fcc4e0$28f64ea0$@sbcglobal.net> Good grief Jim!! First the admin of the Drake reflector wants to shut it down....now the AM reflector is to be shut down for lack of activity. This makes as much sense as selling all my almost mint AM gear during the summer months when QRN is high....only to go find another bunch of gear in November when the bands quiet down! The Drake admin decided to keep that reflector going....I sincerely hope you do too Jim! It is needed especially the archives to supplement the AM forum. Regards.... 73 David Harmon K6XYZ Sperry, OK -----Original Message----- From: amradio-bounces at mailman.qth.net [mailto:amradio-bounces at mailman.qth.net] On Behalf Of w5jo at brightok.net Sent: Friday, July 14, 2017 4:07 PM To: AM Radio List Subject: [AMRadio] The group I have been talking to Brian, W5AMI about this list lately. Given the lack of activity and postings we have decided to terminate it. Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. Otherwise it will go away soon. 73 all, Jim W5JO Moderator ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k6xyz at sbcglobal.net From mjcal77 at yahoo.com Fri Jul 14 19:41:48 2017 From: mjcal77 at yahoo.com (CL in NC) Date: Fri, 14 Jul 2017 23:41:48 +0000 (UTC) Subject: [AMRadio] AMRadio Digest, Vol 162, Issue 1 References: <1270098374.667076.1500075708279.ref@mail.yahoo.com> Message-ID: <1270098374.667076.1500075708279@mail.yahoo.com> I'd hate to see this list go away also. It would be like BAMA or mods.dk shutting down, you don't need it every day, but when you do, it is great to have it. How may people are registered for the forum? How do people learn about it's existence in the first place? I just stumbled upon it when looking for information and the search engine gave me a link here. Don't want to soapbox, but if you are into vintage, don't keep it to yourself. Do a demo at a ham club in your area, or all the clubs in your area, write to the ARRL requesting more and better coverage, submit an article about vintage and argue when you get the refusal letter that says, "Not of interest to our current membership." Charlie, W4MC in NC From oldradio at comcast.net Fri Jul 14 19:49:24 2017 From: oldradio at comcast.net (oldradio at comcast.net) Date: Fri, 14 Jul 2017 19:49:24 -0400 Subject: [AMRadio] [AMRadio reflector] In-Reply-To: <1270098374.667076.1500075708279@mail.yahoo.com> Message-ID: <556e4ac2-a6bd-4e57-8b4c-313424754745@email.android.com> From ron.k3pid at sbcglobal.net Fri Jul 14 19:51:45 2017 From: ron.k3pid at sbcglobal.net (Ron.K3PID) Date: Fri, 14 Jul 2017 18:51:45 -0500 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: <7AFC9546091F4417BCB9F837246C7325@Zeus> One vote to keep it going. I for one only post when I have a question ( or on the rare occasion that I can answer one ) but enjoy what I see... Ron K3PID From w8au at sssnet.com Fri Jul 14 20:00:16 2017 From: w8au at sssnet.com (w8au at sssnet.com) Date: Fri, 14 Jul 2017 20:00:16 -0400 Subject: [AMRadio] The group In-Reply-To: <07e51daf-6797-fc3b-d291-ca660b2924ea@comcast.net> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> <1704101558.3075997.1500067034015.JavaMail.zimbra@comcast.net> <07e51daf-6797-fc3b-d291-ca660b2924ea@comcast.net> Message-ID: At 05:24 PM 7/14/2017, Robert Nickels wrote: >I vote to keep this email reflector going. I seldom look at the >online forum for some of the same reasons mentioned. Most similar >groups have been pretty good at self-policing, as long as the basic >agreement to stay on topic is enforced. And many knowledgeable >resources who will >never be "frequent posters" will pop up when they have something to >contribute. I agree with Bob. Perry w8au From DonC at martineer.net Fri Jul 14 20:03:16 2017 From: DonC at martineer.net (Don Cunningham) Date: Fri, 14 Jul 2017 19:03:16 -0500 Subject: [AMRadio] Reflector Status Message-ID: <7d9437ba-2b65-c381-59e2-5f5e4b501156@martineer.net> Jim, I would sure hate to see us lose any AM resources, much less a well run asset like this group. I hope you and Brian will re-consider and keep the list going. I am new to AM, just actually getting my feet good and wet, and want to learn even more over the upcoming years. 73, Don, WB5HAK From k6xyz at sbcglobal.net Fri Jul 14 20:06:44 2017 From: k6xyz at sbcglobal.net (David Harmon) Date: Fri, 14 Jul 2017 19:06:44 -0500 Subject: [AMRadio] Reflector Status In-Reply-To: <7d9437ba-2b65-c381-59e2-5f5e4b501156@martineer.net> References: <7d9437ba-2b65-c381-59e2-5f5e4b501156@martineer.net> Message-ID: <002101d2fcfe$41472500$c3d56f00$@sbcglobal.net> + one more Don! 73 David Harmon K6XYZ Sperry, OK -----Original Message----- From: amradio-bounces at mailman.qth.net [mailto:amradio-bounces at mailman.qth.net] On Behalf Of Don Cunningham Sent: Friday, July 14, 2017 7:03 PM To: amradio at mailman.qth.net Subject: [AMRadio] Reflector Status Jim, I would sure hate to see us lose any AM resources, much less a well run asset like this group. I hope you and Brian will re-consider and keep the list going. I am new to AM, just actually getting my feet good and wet, and want to learn even more over the upcoming years. 73, Don, WB5HAK ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k6xyz at sbcglobal.net From wb4am at yahoo.com Fri Jul 14 20:11:15 2017 From: wb4am at yahoo.com (KD) Date: Sat, 15 Jul 2017 00:11:15 +0000 (UTC) Subject: [AMRadio] AMRadio Digest, Vol 162, Issue 3 In-Reply-To: References: Message-ID: <1693260473.778422.1500077475915@mail.yahoo.com> There might be more people lurking in the back ground then anyone can ever know! I don't believe I have ever posted but I do read these posts as they come in.? Forums can be similar to Sand Bagging.Just because there are only 2 or 3 people talking over the Air, doesn't mean there are only 2 or 3 people listening to one another.? The number of people listening or perhaps reading these post are unknown. So if any votes count, I vote to keep it going... With that being said, thank you all who do Post and thank you all who allows all of these posts... All the Best,KenWB4AM On Friday, July 14, 2017, 7:53:36 PM EDT, wrote: Send AMRadio mailing list submissions to ??? amradio at mailman.qth.net To subscribe or unsubscribe via the World Wide Web, visit ??? http://mailman.qth.net/mailman/listinfo/amradio or, via email, send a message with subject or body 'help' to ??? amradio-request at mailman.qth.net You can reach the person managing the list at ??? amradio-owner at mailman.qth.net When replying, please edit your Subject line so it is more specific than "Re: Contents of AMRadio digest..." Today's Topics: ? 1. Re: The group (Robert Nickels) ? 2. Re: The group (Larry Szendrei) ? 3. Re: The group (cemilton at aol.com) ? 4. Re: The group (Chuck, AE4CW) ? 5. Re: The group (donroden at hiwaay.net) ? 6. Re: The group (Larry Szendrei) ---------------------------------------------------------------------- Message: 1 Date: Fri, 14 Jul 2017 16:24:07 -0500 From: Robert Nickels To: amradio at mailman.qth.net Subject: Re: [AMRadio] The group Message-ID: <07e51daf-6797-fc3b-d291-ca660b2924ea at comcast.net> Content-Type: text/plain; charset=utf-8; format=flowed I vote to keep this email reflector going.? I seldom look at the online forum for some of the same reasons mentioned.? Most similar groups have been pretty good at self-policing, as long as the basic agreement to stay on topic is enforced.? And many knowledgeable resources? who will? never be "frequent posters" will pop up when they have something to contribute. 73, Bob W9RAN - From bguyger at yahoo.com Fri Jul 14 20:31:26 2017 From: bguyger at yahoo.com (Bill Guyger) Date: Fri, 14 Jul 2017 19:31:26 -0500 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: <6096B011-22FB-4DF0-A5C0-EE1DE333C5F5@yahoo.com> Jim and the group I seriously don't know what it costs to maintain this mailer, but it has been a blessing to a lot of us. I totally agree that usage seems down on a lot of lists, but as an example the R-390A reflector is silent for periods and then someone will ask a question and here comes a ton of answers. We who care about AM and heavy iron are a minority so we need to stick up for ourselves. There's a ton of knowledge present in the list membership. For example, Jim Tonne is a guru of filters and networks and knows where of he speaks about processing from many years in broadcasting. I wouldn't consider myself a master by any stretch, but I was recently able to help another ham with info on Bauer 707's. I'm pretty sure a lot of us have fallen into taking the list for granted and I do apologize on my behalf but it would sure be a blessing to all us over the hill burnout AMers :-) if you guys could keep it going. It's a shame about Boatanchors but I believe (can't recall his name....sorry) who founded the group is either a SK or is in declining health. I was able to obtain a lot of parts from other members. I built a 813 based transmitter out of the '55 handbook and restore a RCA Radiola 18 with help of other guys on the list. I need a capacitor for the RCA, and a member pulled it out of a parts radio and sent it to me. Couldn't help but feel ironic about installing a capacitor that was older than I was the in a radio that was older than I was...... Bill AD5OL Sent from my iPhone > On Jul 14, 2017, at 4:07 PM, wrote: > > I have been talking to Brian, W5AMI about this list lately. > > Given the lack of activity and postings we have decided to terminate it. > > Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. > > Otherwise it will go away soon. > > 73 all, > > Jim > W5JO > Moderator > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to bguyger at yahoo.com From kjsorenson at gmail.com Fri Jul 14 20:34:19 2017 From: kjsorenson at gmail.com (Jim Sorenson) Date: Fri, 14 Jul 2017 20:34:19 -0400 Subject: [AMRadio] Keep the AM Mailing List Message-ID: Another vote to keep it going. I don't post often, but I read every post and every time I do I learn something interesting and useful. It makes me a better ham even after 60 years at it. Jim W3BH On Fri, Jul 14, 2017 at 8:15 PM, wrote: > Send AMRadio mailing list submissions to > amradio at mailman.qth.net > > To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.qth.net/mailman/listinfo/amradio > or, via email, send a message with subject or body 'help' to > amradio-request at mailman.qth.net > > You can reach the person managing the list at > amradio-owner at mailman.qth.net > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of AMRadio digest..." > > > Today's Topics: > > 1. Re: [AMRadio reflector] (oldradio at comcast.net) > 2. Re: The group (Ron.K3PID) > 3. Re: The group (w8au at sssnet.com) > 4. Reflector Status (Don Cunningham) > 5. Re: Reflector Status (David Harmon) > 6. Re: AMRadio Digest, Vol 162, Issue 3 (KD) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 14 Jul 2017 19:49:24 -0400 > From: oldradio at comcast.net > To: CL in NC > Cc: amradio at mailman.qth.net > Subject: Re: [AMRadio] [AMRadio reflector] > Message-ID: <556e4ac2-a6bd-4e57-8b4c-313424754745 at email.android.com> > Content-Type: text/plain; charset="utf-8" > > > > ------------------------------ > > Message: 2 > Date: Fri, 14 Jul 2017 18:51:45 -0500 > From: "Ron.K3PID" > To: , "AM Radio List" > Subject: Re: [AMRadio] The group > Message-ID: <7AFC9546091F4417BCB9F837246C7325 at Zeus> > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > reply-type=response > > One vote to keep it going. I for one only post when I have a question ( or > on the rare occasion that I can answer one ) but enjoy what I see... > > > Ron K3PID > > > > > > ------------------------------ > > Message: 3 > Date: Fri, 14 Jul 2017 20:00:16 -0400 > From: w8au at sssnet.com > To: amradio at mailman.qth.net > Subject: Re: [AMRadio] The group > Message-ID: > Content-Type: text/plain; charset="us-ascii"; format=flowed > > At 05:24 PM 7/14/2017, Robert Nickels wrote: > >I vote to keep this email reflector going. I seldom look at the > >online forum for some of the same reasons mentioned. Most similar > >groups have been pretty good at self-policing, as long as the basic > >agreement to stay on topic is enforced. And many knowledgeable > >resources who will > >never be "frequent posters" will pop up when they have something to > >contribute. > > I agree with Bob. > > Perry w8au > > > > ------------------------------ > > Message: 4 > Date: Fri, 14 Jul 2017 19:03:16 -0500 > From: Don Cunningham > To: amradio at mailman.qth.net > Subject: [AMRadio] Reflector Status > Message-ID: <7d9437ba-2b65-c381-59e2-5f5e4b501156 at martineer.net> > Content-Type: text/plain; charset=utf-8; format=flowed > > Jim, > I would sure hate to see us lose any AM resources, much less a well run > asset like this group. I hope you and Brian will re-consider and keep > the list going. > > I am new to AM, just actually getting my feet good and wet, and want to > learn even more over the upcoming years. > 73, > Don, WB5HAK > > > ------------------------------ > > Message: 5 > Date: Fri, 14 Jul 2017 19:06:44 -0500 > From: "David Harmon" > To: > Subject: Re: [AMRadio] Reflector Status > Message-ID: <002101d2fcfe$41472500$c3d56f00$@sbcglobal.net> > Content-Type: text/plain; charset="us-ascii" > > + one more Don! > > > 73 > > David Harmon > K6XYZ > Sperry, OK > > > -----Original Message----- > From: amradio-bounces at mailman.qth.net > [mailto:amradio-bounces at mailman.qth.net] On Behalf Of Don Cunningham > Sent: Friday, July 14, 2017 7:03 PM > To: amradio at mailman.qth.net > Subject: [AMRadio] Reflector Status > > Jim, > I would sure hate to see us lose any AM resources, much less a well run > asset like this group. I hope you and Brian will re-consider and keep the > list going. > > I am new to AM, just actually getting my feet good and wet, and want to > learn even more over the upcoming years. > 73, > Don, WB5HAK > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: > http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with the > word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message > delivered to k6xyz at sbcglobal.net > > > > ------------------------------ > > Message: 6 > Date: Sat, 15 Jul 2017 00:11:15 +0000 (UTC) > From: KD > To: > Subject: Re: [AMRadio] AMRadio Digest, Vol 162, Issue 3 > Message-ID: <1693260473.778422.1500077475915 at mail.yahoo.com> > Content-Type: text/plain; charset=UTF-8 > > There might be more people lurking in the back ground then anyone can ever > know! > I don't believe I have ever posted but I do read these posts as they come > in.? Forums can be similar to Sand Bagging.Just because there are only 2 or > 3 people talking over the Air, doesn't mean there are only 2 or 3 people > listening to one another.? The number of people listening or perhaps > reading these post are unknown. > So if any votes count, I vote to keep it going... > With that being said, thank you all who do Post and thank you all who > allows all of these posts... > All the Best,KenWB4AM > > > On Friday, July 14, 2017, 7:53:36 PM EDT, net> wrote: > > Send AMRadio mailing list submissions to > ??? amradio at mailman.qth.net > > To subscribe or unsubscribe via the World Wide Web, visit > ??? http://mailman.qth.net/mailman/listinfo/amradio > or, via email, send a message with subject or body 'help' to > ??? amradio-request at mailman.qth.net > > You can reach the person managing the list at > ??? amradio-owner at mailman.qth.net > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of AMRadio digest..." > > > Today's Topics: > > ? 1. Re: The group (Robert Nickels) > ? 2. Re: The group (Larry Szendrei) > ? 3. Re: The group (cemilton at aol.com) > ? 4. Re: The group (Chuck, AE4CW) > ? 5. Re: The group (donroden at hiwaay.net) > ? 6. Re: The group (Larry Szendrei) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 14 Jul 2017 16:24:07 -0500 > From: Robert Nickels > To: amradio at mailman.qth.net > Subject: Re: [AMRadio] The group > Message-ID: <07e51daf-6797-fc3b-d291-ca660b2924ea at comcast.net> > Content-Type: text/plain; charset=utf-8; format=flowed > > I vote to keep this email reflector going.? I seldom look at the online > forum for some of the same reasons mentioned.? Most similar groups have > been pretty good at self-policing, as long as the basic agreement to > stay on topic is enforced.? And many knowledgeable resources? who will? > never be "frequent posters" will pop up when they have something to > contribute. > > 73, Bob W9RAN > > > - > > > ------------------------------ > > ______________________________________________________________ > AMRadio mailing list > Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:AMRadio at mailman.qth.net > > > End of AMRadio Digest, Vol 162, Issue 6 > *************************************** > From bguyger at yahoo.com Fri Jul 14 20:37:08 2017 From: bguyger at yahoo.com (Bill Guyger) Date: Fri, 14 Jul 2017 19:37:08 -0500 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: Also, I noticed in QST that the AM event apparently went over pretty well. Of course since it was the ARRL's idea....they were going to pat themselves on the back. Maybe we as a group should reach out to the great unwashed I mean uninformed and let them know we're here. That might lead to more members therefore more activity. Bill AD5OL Sent from my iPhone > On Jul 14, 2017, at 4:07 PM, wrote: > > I have been talking to Brian, W5AMI about this list lately. > > Given the lack of activity and postings we have decided to terminate it. > > Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. > > Otherwise it will go away soon. > > 73 all, > > Jim > W5JO > Moderator > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to bguyger at yahoo.com From K4TQF at yahoo.com Fri Jul 14 20:38:54 2017 From: K4TQF at yahoo.com (Mike Durff) Date: Sat, 15 Jul 2017 00:38:54 +0000 (UTC) Subject: [AMRadio] RCA Transformer ID? References: <1011695842.873775.1500079134540.ref@mail.yahoo.com> Message-ID: <1011695842.873775.1500079134540@mail.yahoo.com> RCA 901765-501?Tag says:Class = ModulationPri= 5500 ohmssec = 5500 ohms. I thought it was a modulation transformer, but others say no. Google doesn't yield ?conclusive results. Any guesses? Thanks, Durff From 4qtvic53 at gmail.com Fri Jul 14 20:40:59 2017 From: 4qtvic53 at gmail.com (V Mukal) Date: Fri, 14 Jul 2017 20:40:59 -0400 Subject: [AMRadio] The Group Message-ID: My vote is to continue this email reflector. I'm one of those who read every email and only comment when I have something to contribute. I've maintained my interest in all things AM largely because of the postings here. I feel the group has encouraged me and others to continue to pursue AM as a viable mode of communication. To me, this reflector shows me that there are still many hams like me that have maintained this interest in spite of everything going digital these days. Tom WB2STR From mikebracey at att.net Fri Jul 14 20:54:22 2017 From: mikebracey at att.net (Mike Bracey) Date: Sat, 15 Jul 2017 00:54:22 +0000 (UTC) Subject: [AMRadio] The group In-Reply-To: References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: <570296684.809834.1500080062983@mail.yahoo.com> Jim, I sure hope that you change your mind. Although I'm hardly qualified to answer others questions, This list is a valued resource for me. I don't post but I'm reading and learning. 73, Mike, KE5YTV ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to mikebracey at att.net From k5xu at comcast.net Fri Jul 14 21:23:50 2017 From: k5xu at comcast.net (Mike Duke, K5XU) Date: Fri, 14 Jul 2017 21:23:50 -0400 Subject: [AMRadio] AM Activity on 15 and 10 meters. Message-ID: So, does this mean I had better quickly get in one last post about the mythological AM activity on 15 meters? For that matter, I haven't heard any short skip AM on 10 meters this summer either. Turn on something, and make some radio racket! -- Mike Duke, K5XU From k5xu at comcast.net Fri Jul 14 21:30:45 2017 From: k5xu at comcast.net (Mike Duke, K5XU) Date: Fri, 14 Jul 2017 21:30:45 -0400 Subject: [AMRadio] Utilizing the discussion list Message-ID: <0d366fb9.c810.4b48.b1f6.2e7028b346c9@samobile.net> Too many email groups, including the professional group that I participate in at work, have moved to Facebook, or to some site where you have to log in in order to do anything with them. I like the simple email reflector approach much better for day-to-day discussion. I also appreciate the fact that this group tends to do a better job of keeping the topics relivent to the intended focus of the list than some other reflectors do. -- Mike Duke, K5XU From ranchorobbo at gmail.com Fri Jul 14 21:38:23 2017 From: ranchorobbo at gmail.com (Rob Atkinson) Date: Fri, 14 Jul 2017 20:38:23 -0500 Subject: [AMRadio] RCA Transformer ID? In-Reply-To: <1011695842.873775.1500079134540@mail.yahoo.com> References: <1011695842.873775.1500079134540.ref@mail.yahoo.com> <1011695842.873775.1500079134540@mail.yahoo.com> Message-ID: are you sure it is not 901769-501? that's a RCA modulated CW transformer. It's _okay_ for ham radio voice but not as good as broadcast mod. iron. http://www.amwindow.org/tech/htm/modtran/rca.htm rob k5uj On Fri, Jul 14, 2017 at 7:38 PM, Mike Durff via AMRadio wrote: > RCA 901765-501 Tag says:Class = ModulationPri= 5500 ohmssec = 5500 ohms. > I thought it was a modulation transformer, but others say no. Google doesn't yield conclusive results. > Any guesses? > Thanks, Durff From n4tua at aol.com Fri Jul 14 22:16:06 2017 From: n4tua at aol.com (Collin) Date: Fri, 14 Jul 2017 22:16:06 -0400 Subject: [AMRadio] This group is great Message-ID: <3D787FBB-FB9F-4310-B0CF-6EF1E4EA81C6@aol.com> I have received much help from the AM experience here. Please leave it open. I am like many lurking but reading the mail. Good Day, Collin From ars.w5omr at gmail.com Fri Jul 14 23:24:01 2017 From: ars.w5omr at gmail.com (ARS W5OMR) Date: Fri, 14 Jul 2017 22:24:01 -0500 Subject: [AMRadio] RCA Transformer ID? In-Reply-To: <1011695842.873775.1500079134540@mail.yahoo.com> References: <1011695842.873775.1500079134540.ref@mail.yahoo.com> <1011695842.873775.1500079134540@mail.yahoo.com> Message-ID: Rca 1:1 mod xfmr. Secondary good for 200mA. I believe these were used on the Liberty ships using modulated CW. I ran a pair of 250TH's on one, with a capacitor coupled reactor choke to shunt the DC off of the secondary. W5OMR On Jul 14, 2017 19:40, "Mike Durff via AMRadio" wrote: > RCA 901765-501 Tag says:Class = ModulationPri= 5500 ohmssec = 5500 ohms. > I thought it was a modulation transformer, but others say no. Google > doesn't yield conclusive results. > Any guesses? > Thanks, Durff > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ars.w5omr at gmail.com From paul at paulbaldock.com Fri Jul 14 23:37:49 2017 From: paul at paulbaldock.com (Paul Baldock) Date: Fri, 14 Jul 2017 20:37:49 -0700 Subject: [AMRadio] AM Activity on 15 and 10 meters. In-Reply-To: References: Message-ID: <59698e0e.1ba0620a.4513e.54e4@mx.google.com> As I type this at 8:30PM West Coast time 10M is open via E-skip to many parts of the US. Just listen for beacons between 28.2 and 28.3, and SSB between 28.3 and 28.5. Unfortunately no AM around 29.0 If you want to check what's happening visually look at www.dxmaps.com I agree 15m is mythical at the moment due to poor propagation, but 40m, 20m and 10m do not have to be. - Paul KW7Y At 06:23 PM 7/14/2017, Mike Duke, K5XU wrote: >So, does this mean I had better quickly get in one last post about >the mythological AM activity on 15 meters? > >For that matter, I haven't heard any short skip AM on 10 meters this >summer either. > >Turn on something, and make some radio racket! > >-- >Mike Duke, K5XU >______________________________________________________________ >Our Main Website: http://www.amfone.net >AMRadio mailing list >Archives: http://mailman.qth.net/pipermail/amradio/ >List Rules (must read!): http://w5ami.net/amradiofaq.html >List Home: http://mailman.qth.net/mailman/listinfo/amradio >Post: AMRadio at mailman.qth.net >To unsubscribe, send an email to amradio-request at mailman.qth.net with >the word unsubscribe in the message body. > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to paul at paulbaldock.com From lomaurer at gmail.com Sat Jul 15 00:25:22 2017 From: lomaurer at gmail.com (chuck maurer) Date: Fri, 14 Jul 2017 23:25:22 -0500 Subject: [AMRadio] Comment Message-ID: <9BE32E87-5F4B-4B42-8631-EC74FA07F804@gmail.com> Hello everyone, my name is Chuck W5API. I am one of the ones lurking in the shadows and soaking up knowledge. I have been reading the list for several years and have learned a lot about AM, etc here from the experts. I am a retired engineer from IBM and could give a flip about all the new digital nonsense. Instead I have a burning desire to understand were we came from and the engineering art that went into the older equipment from the 40's, 50's and 60's. These were masterpieces of engineering design and that tradition should be carried forward. Currently I am resurrecting an ART-13 complete with dynamotor and getting close to putting it on the air with a R-390A. Killing the AM Group would be like shutting down Electric Radio magazine. 73's Chuck W5API Wimberley, Texas Sent from my iPhone From k7zq at earthlink.net Sat Jul 15 01:56:19 2017 From: k7zq at earthlink.net (Walt Miller) Date: Fri, 14 Jul 2017 22:56:19 -0700 Subject: [AMRadio] The group Message-ID: <000e01d2fd2f$14fab2b0$3ef01810$@earthlink.net> Jim, I vote to keep the list going. I've never posted to the list but I read every post and have learned a lot over the years. 73, Walt K7ZQ From navy.radio at gmail.com Sat Jul 15 05:42:59 2017 From: navy.radio at gmail.com (Nick England) Date: Sat, 15 Jul 2017 09:42:59 +0000 Subject: [AMRadio] Utilizing the discussion list In-Reply-To: <0d366fb9.c810.4b48.b1f6.2e7028b346c9@samobile.net> References: <0d366fb9.c810.4b48.b1f6.2e7028b346c9@samobile.net> Message-ID: Like others, I am mainly a lurker who enjoys learning from the discussions here. And I value having knowledgeable folks on tap as a resource. We just saw a great example - when Mike Durf asked on another list where he could find out info on an RCA mod xfmr, I replied "AMRADIO!" So he posted here and got two quick replies with the info he was seeking. Well done! Keep up the good work. Nick K4NYW -- Nick England K4NYW www.navy-radio.com From ranchorobbo at gmail.com Sat Jul 15 06:53:35 2017 From: ranchorobbo at gmail.com (Rob Atkinson) Date: Sat, 15 Jul 2017 05:53:35 -0500 Subject: [AMRadio] RCA Transformer ID? In-Reply-To: References: <1011695842.873775.1500079134540.ref@mail.yahoo.com> <1011695842.873775.1500079134540@mail.yahoo.com> Message-ID: That should certainly help with the audio frequency response. I can't remember if they have a core gap or not. I bet they have one. I heard that RCA made a zillion of them and they were frequently found at hamfests 50 years ago. I don't know what kind of final PA was in the Liberty ship rigs. Must have been some sort of tetrode because of the tertiary winding, or else maybe the 3rd winding was used to modulate the driver. 73 Rob K5UJ On Fri, Jul 14, 2017 at 10:24 PM, ARS W5OMR wrote: > Rca 1:1 mod xfmr. > Secondary good for 200mA. > I believe these were used on the Liberty ships using modulated CW. > > I ran a pair of 250TH's on one, with a capacitor coupled reactor choke to > shunt the DC off of the secondary. > > W5OMR From ars.w5omr at gmail.com Sat Jul 15 08:26:50 2017 From: ars.w5omr at gmail.com (ars.w5omr at gmail.com) Date: Sat, 15 Jul 2017 07:26:50 -0500 Subject: [AMRadio] RCA Transformer ID? Message-ID: <596a0c56.0254ca0a.c2235.da87@mx.google.com> I believe that was a winding to modulate the screens of say an 813, or a 4-125/250/400 On Jul 15, 2017 5:53 AM, Rob Atkinson wrote: > > That should certainly help with the audio frequency response.? I can't > remember if they have a core gap or not.? I bet they have one.? I > heard that RCA made a zillion of them and they were frequently found > at hamfests 50 years ago.?? I don't know what kind of final PA was in > the Liberty ship rigs.? Must have been some sort of tetrode because of > the tertiary winding, or else maybe the 3rd winding was used to > modulate the driver. > > 73 > > Rob > K5UJ > > On Fri, Jul 14, 2017 at 10:24 PM, ARS W5OMR wrote: > > Rca 1:1 mod xfmr. > > Secondary good for 200mA. > > I believe these were used on the Liberty ships using modulated CW. > > > > I ran a pair of 250TH's on one, with a capacitor coupled reactor choke to > > shunt the DC off of the secondary. > > > > W5OMR From lexnonscripta at usa.com Sat Jul 15 09:34:40 2017 From: lexnonscripta at usa.com (mark) Date: Sat, 15 Jul 2017 08:34:40 -0500 Subject: [AMRadio] AMRadio Digest, Vol 162, Issue 1 In-Reply-To: <1270098374.667076.1500075708279@mail.yahoo.com> References: <1270098374.667076.1500075708279.ref@mail.yahoo.com> <1270098374.667076.1500075708279@mail.yahoo.com> Message-ID: Keep the AM reflector up and healthy! I am just getting back to AM (Original founder and Net Control for the Midwest AM Classic Radio Net) Been away for a few years but got a new license and several Transmitters, Including a T-368. Just trying to catch up with a lot of other responsibilities. My plan is to rewire and remodel my new Radio room, but its been slow going. If you decide to give it up, instead of that, turn it over to someone else that will maintain it. That is what I did when I moved to Arizona with The MCRN. BTW - the sunspot cycle has driven interest into the ground, when it returns a resurgence of interest will also return. However, the more you surrender, the more you lose. Keep the reflector alive! 73' KD9CXH (Formerly KA9FBX) Mark From lexnonscripta at usa.com Sat Jul 15 09:36:55 2017 From: lexnonscripta at usa.com (mark) Date: Sat, 15 Jul 2017 08:36:55 -0500 Subject: [AMRadio] The group In-Reply-To: References: Message-ID: <670eafaa-71a0-56e1-08dc-269548792c6f@usa.com> My sentiments exactly, Mark KD9CXH > Looking back through the archives (AM and others) over the years, the > number of postings have dropped on a number of text-based reflectors. > Over the last few years, the number of Internet based forums for a number > of our traditional modes and manufacturers has also increased in > proportion. They provide the ability to post pictures, files, and other > amenities not available to text-based reflectors so, for many, they have > an advantage and appeal especially for those who may have entered into > AM, boatanchors, Heathkits, etc. over the last few years and aren't > familiar or care about text-based only reflectors. > > Obviously Jim, given the number of responses to your post already, it > shows concern of something that might go away, but in the long term, it > still doesn't guarantee any real up tick in overall activity. If Brian > and others feel the need to move on to other things, it's possible the AM > reflector ownership and moderation could be managed by others if they're > willing to step forward. > > Pete, wa2cwa > > > > On Fri, 14 Jul 2017 16:07:29 -0500 writes: >> I have been talking to Brian, W5AMI about this list lately. >> >> Given the lack of activity and postings we have decided to terminate >> it. >> >> Even Boatanchors has diminished postings. So if you do not want to >> >> terminate this group, then post an answer. >> >> Otherwise it will go away soon. >> >> 73 all, >> >> Jim >> W5JO >> Moderator > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to lexnonscripta at usa.com > From w5jo at brightok.net Sat Jul 15 10:48:21 2017 From: w5jo at brightok.net (w5jo at brightok.net) Date: Sat, 15 Jul 2017 09:48:21 -0500 Subject: [AMRadio] Possible changes Message-ID: Hi everyone, Your comments are not falling on deaf ears, we appreciate your thoughts about what happens here. Some things for you to consider. It is not a burden to moderate this list, especially lately with the lack of traffic. Also the cost to Brian, Todd and myself is nil other than time spent. However, the cost of space for it is bourn by the owner of the equipment where this reflector resides. I rarely see any request for donations from the owner, but if you can, please contribute to him. Over the years, and my memory is not all that good, we have not had what I would call any real problems. Again if memory serves, we have banned only one participant and I have had conversations with just a few. That is a testament to the atmosphere all here create and maintain. Another thing I see is the level of information is of very high quality. It is a place that someone can come to ask any question and receive a kind answer. That is the one thing we have tried to provide, an atmosphere where all questions are treated with the same level of respect. I look at the reflector as a place where those of the AM community can come and carry on a QSO. All discussions are not required to be about technical issues with equipment, however the discussions should be the kind of things that an AM QSO would contain. Keep in mind I am talking about propagation, antennas, tuners, audio enhancements, methods of tuning and the like. I do not want to see the reflector degenerate into personal discussions, mowing the lawn or such other than incidental, occasional comments contained in the post. What has happened to the traffic here is not all that seasonal. Yes in summertime activity falls off, but the lack of traffic in the past 12 months span the 4 seasons. Also the use of Facebook has moved many to that venue along with other social sites. That, I think, has been the biggest influence here. I know of several people who have started pages on Facebook and would not consider coming over here now. That has driven the traffic down considerably. I would like to thank all of you for your kind words and thoughts. I, or we, will keep you informed. Like so many of you I read every post all the way through for obvious reasons. The group here are professional and very knowledgeable. Thanks to all for that kind of atmosphere. 73, Jim W5JO Moderator From kb2wig at twcny.rr.com Sat Jul 15 11:51:01 2017 From: kb2wig at twcny.rr.com (kb2wig at twcny.rr.com) Date: Sat, 15 Jul 2017 15:51:01 +0000 Subject: [AMRadio] AMradio List snufication Message-ID: <20170715155101.J1BIA.216668.root@cdptpa-web01> Keep the reflector. Please. klc From ranchorobbo at gmail.com Sat Jul 15 12:06:58 2017 From: ranchorobbo at gmail.com (Rob Atkinson) Date: Sat, 15 Jul 2017 11:06:58 -0500 Subject: [AMRadio] Possible changes In-Reply-To: References: Message-ID: you have to be a real 100% sucker to have anything to do with Facebook. Zuck takes all your information and sells it. Once you join it's nearly impossible to divorce yourself from Facebook and your identity gets mined and sold. Read the agreement--like something you sign to buy in a HOA development. I wouldn't touch it with a 10 foot pole. Facebook's popularity is only due to the technical incompetence of billions who want a webpage but don't know how to get one. Just because some people are fool enough for social media doesn't mean an email list is no good. Besides, I have social media--it's ham radio. 73 Rob K5UJ On Sat, Jul 15, 2017 at 9:48 AM, wrote: Also the use of Facebook has moved many to that venue > along with other social sites. That, I think, has been the biggest > influence here. I know of several people who have started pages on Facebook > and would not consider coming over here now. That has driven the traffic > down considerably. From paul at paulbaldock.com Sat Jul 15 12:26:22 2017 From: paul at paulbaldock.com (Paul Baldock) Date: Sat, 15 Jul 2017 09:26:22 -0700 Subject: [AMRadio] 10M open West Coast to East Coast In-Reply-To: <20170715155101.J1BIA.216668.root@cdptpa-web01> References: <20170715155101.J1BIA.216668.root@cdptpa-web01> Message-ID: <596a4230.919c620a.72ed0.060b@mx.google.com> 10M open West Coast to East Coast 16:25Z Listen 29.000 - Pau;l KW7Y From mjcal77 at yahoo.com Sat Jul 15 12:59:20 2017 From: mjcal77 at yahoo.com (CL in NC) Date: Sat, 15 Jul 2017 16:59:20 +0000 (UTC) Subject: [AMRadio] AM activity on 15 and 10...and 6! References: <1975212935.923912.1500137960038.ref@mail.yahoo.com> Message-ID: <1975212935.923912.1500137960038@mail.yahoo.com> I was working on an RME 2-11 receiver and had it hooked to my 6 meter dipole. Beacons started boiling in from the west and midwest. I got on my shack rig and yagi and called CQ on CW and SSB on their appropriate frequencies, and AM on 50.4......nada. Don't forget 50.4 if you have the ability. We have a local net here in my area that meets weekly. There have been times where we had to quit because of all the AM sigs coming in, and start working them. Funniest story involved a fellow in Nova Scotia who was apparently talking across town to somebody on 50.4. He said he was going QRT due to all the QRM, while multiple stations were calling him. Charlie, W4MEC in NC From ne1s at securespeed.us Sat Jul 15 13:04:14 2017 From: ne1s at securespeed.us (Larry Szendrei) Date: Sat, 15 Jul 2017 13:04:14 -0400 Subject: [AMRadio] 10M open West Coast to East Coast In-Reply-To: <596a4230.919c620a.72ed0.060b@mx.google.com> References: <20170715155101.J1BIA.216668.root@cdptpa-web01> <596a4230.919c620a.72ed0.060b@mx.google.com> Message-ID: <2d01ec95-2bf4-56c6-87f7-1f0874679557@securespeed.us> Nary a signal here in Maine at 1700Z. No beacons, nothing. Just made some noise on 29 MHz. Did I miss it? 73, -Larry/NE1S On 7/15/17 12:26 PM, Paul Baldock wrote: > 10M open West Coast to East Coast 16:25Z > > Listen 29.000 > > - Pau;l KW7Y > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ne1s at securespeed.us > From n4tua at aol.com Sat Jul 15 13:11:18 2017 From: n4tua at aol.com (Collin) Date: Sat, 15 Jul 2017 13:11:18 -0400 Subject: [AMRadio] 10M open West Coast to East Coast Message-ID: <062E04D0-F4B4-44FE-9090-4682245B2DA0@aol.com> I am listening on 29.000 on East coast I here nothing Calling CQ Good Day, Collin > On Jul 15, 2017, at 12:26 PM, Paul Baldock wrote: > > 10M open West Coast to East Coast 16:25Z > > Listen 29.000 > > - Pau;l KW7Y > > From donroden at hiwaay.net Sat Jul 15 13:23:09 2017 From: donroden at hiwaay.net (donroden at hiwaay.net) Date: Sat, 15 Jul 2017 12:23:09 -0500 Subject: [AMRadio] 10M open West Coast to East Coast In-Reply-To: <596a4230.919c620a.72ed0.060b@mx.google.com> References: <20170715155101.J1BIA.216668.root@cdptpa-web01> <596a4230.919c620a.72ed0.060b@mx.google.com> Message-ID: <20170715122309.Horde.3xNkMIRjnVGa635SsVZGBp-@webmail.hiwaay.net> Just lightning static here in North Alabama W4DNR Quoting Paul Baldock : > 10M open West Coast to East Coast 16:25Z > > Listen 29.000 > > - Pau;l KW7Y > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donroden at hiwaay.net DonR From donroden at hiwaay.net Sat Jul 15 13:23:09 2017 From: donroden at hiwaay.net (donroden at hiwaay.net) Date: Sat, 15 Jul 2017 12:23:09 -0500 Subject: [AMRadio] 10M open West Coast to East Coast In-Reply-To: <596a4230.919c620a.72ed0.060b@mx.google.com> References: <20170715155101.J1BIA.216668.root@cdptpa-web01> <596a4230.919c620a.72ed0.060b@mx.google.com> Message-ID: <20170715122309.Horde.3xNkMIRjnVGa635SsVZGBp-@webmail.hiwaay.net> Just lightning static here in North Alabama W4DNR Quoting Paul Baldock : > 10M open West Coast to East Coast 16:25Z > > Listen 29.000 > > - Pau;l KW7Y > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donroden at hiwaay.net DonR From w5dvg at sbcglobal.net Sat Jul 15 13:33:13 2017 From: w5dvg at sbcglobal.net (W5DVG - Patrick Rogers) Date: Sat, 15 Jul 2017 12:33:13 -0500 Subject: [AMRadio] The group In-Reply-To: <1704101558.3075997.1500067034015.JavaMail.zimbra@comcast.net> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> <1704101558.3075997.1500067034015.JavaMail.zimbra@comcast.net> Message-ID: AM Radio: I already sent my "yes" to keep the group going. As busy as I am in retirement and having just read all the "keep it going" requests, I suddenly remembered why I joined the group. I have a Globe Scout 65A and a Heathkit Apache that I want to get on the air this fall. The GS works great save maybe changing out the filter cap. I have been collecting xtals for 80-40 meters. Have a Drake 2A receiver. Should be a great combo. The "Scratch Apache" I believe only needs new power supply caps as well. Looking forward hopefully to helpful comments as I get to the restoration work this fall. Can't wait to fire up the AM. Patrick 73's de Amateur Radio Station W5DVG Williamson County EM10cl From jim.isbell at gmail.com Sat Jul 15 16:28:51 2017 From: jim.isbell at gmail.com (Jim Isbell, W5JAI) Date: Sat, 15 Jul 2017 15:28:51 -0500 Subject: [AMRadio] The group In-Reply-To: References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> <1704101558.3075997.1500067034015.JavaMail.zimbra@comcast.net> Message-ID: I already voted yes. And I also watch the list because of the Atlas 210 and the Tempo One that I have and intend to restore....as soon as I am retired enough to have time. Jim Isbell On Sat, Jul 15, 2017 at 12:33 PM, W5DVG - Patrick Rogers < w5dvg at sbcglobal.net> wrote: > AM Radio: > > I already sent my "yes" to keep the group going. As busy as I am in > retirement and having just read all the "keep it going" requests, I > suddenly > remembered why I joined the group. > > I have a Globe Scout 65A and a Heathkit Apache that I want to get on the > air > this fall. The GS works great save maybe changing out the filter cap. I > have > been collecting xtals for 80-40 meters. Have a Drake 2A receiver. Should be > a great combo. > > The "Scratch Apache" I believe only needs new power supply caps as well. > > Looking forward hopefully to helpful comments as I get to the restoration > work this fall. > > Can't wait to fire up the AM. > > Patrick > 73's de > Amateur Radio Station > W5DVG > Williamson County EM10cl > > > > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jim.isbell at gmail.com > From randyn3lrx at gmail.com Sat Jul 15 18:22:43 2017 From: randyn3lrx at gmail.com (Randy Berry) Date: Sat, 15 Jul 2017 18:22:43 -0400 Subject: [AMRadio] Possible changes In-Reply-To: References: Message-ID: II hope you've made the decision to keep the list. Changes are fine, everything changes over time. I don't say much because I generally don't have much to say but I read all of the posts that come through this list and I enjoy it. I am living in an apartment and cannot have any form of antennas so my ham radio is limited to the Internet and what I can read. I'd love to get on the air and yak with you guys, and actually use my legal limit AM tx'er, but for now I'll just have to read about all your AM experiences on here. Thank you Jim, et al. for your consideration in keeping the list alive. 73 es gl de Randy N3LRX/8 On Sat, Jul 15, 2017 at 10:48 AM, wrote: > Hi everyone, > > Your comments are not falling on deaf ears, we appreciate your thoughts > about what happens here. Some things for you to consider. > > It is not a burden to moderate this list, especially lately with the lack of > traffic. Also the cost to Brian, Todd and myself is nil other than time > spent. However, the cost of space for it is bourn by the owner of the > equipment where this reflector resides. I rarely see any request for > donations from the owner, but if you can, please contribute to him. > > Over the years, and my memory is not all that good, we have not had what I > would call any real problems. Again if memory serves, we have banned only > one participant and I have had conversations with just a few. That is a > testament to the atmosphere all here create and maintain. > > Another thing I see is the level of information is of very high quality. It > is a place that someone can come to ask any question and receive a kind > answer. That is the one thing we have tried to provide, an atmosphere where > all questions are treated with the same level of respect. I look at the > reflector as a place where those of the AM community can come and carry on a > QSO. All discussions are not required to be about technical issues with > equipment, however the discussions should be the kind of things that an AM > QSO would contain. Keep in mind I am talking about propagation, antennas, > tuners, audio enhancements, methods of tuning and the like. I do not want > to see the reflector degenerate into personal discussions, mowing the lawn > or such other than incidental, occasional comments contained in the post. > > What has happened to the traffic here is not all that seasonal. Yes in > summertime activity falls off, but the lack of traffic in the past 12 months > span the 4 seasons. Also the use of Facebook has moved many to that venue > along with other social sites. That, I think, has been the biggest > influence here. I know of several people who have started pages on Facebook > and would not consider coming over here now. That has driven the traffic > down considerably. > > I would like to thank all of you for your kind words and thoughts. I, or > we, will keep you informed. Like so many of you I read every post all the > way through for obvious reasons. The group here are professional and very > knowledgeable. > > Thanks to all for that kind of atmosphere. > > 73, > > Jim > W5JO > Moderator > > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to randyn3lrx at gmail.com From rsq14adam1 at hotmail.com Sat Jul 15 19:01:41 2017 From: rsq14adam1 at hotmail.com (C.L. Mitchell) Date: Sat, 15 Jul 2017 23:01:41 +0000 Subject: [AMRadio] The group In-Reply-To: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: I hope it stays around. Good info passes through here. Tnx es 73, Mitch K9PNP ________________________________ From: amradio-bounces at mailman.qth.net on behalf of w5jo at brightok.net Sent: Friday, July 14, 2017 4:07 PM To: AM Radio List Subject: [AMRadio] The group I have been talking to Brian, W5AMI about this list lately. Given the lack of activity and postings we have decided to terminate it. Even Boatanchors has diminished postings. So if you do not want to terminate this group, then post an answer. Otherwise it will go away soon. 73 all, Jim W5JO Moderator ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rsq14adam1 at hotmail.com From jcandela at prodigy.net Sat Jul 15 19:12:57 2017 From: jcandela at prodigy.net (Jim Candela) Date: Sat, 15 Jul 2017 23:12:57 +0000 (UTC) Subject: [AMRadio] The group In-Reply-To: References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> Message-ID: <1810802195.1185365.1500160377848@mail.yahoo.com> I too have been very quiet on this reflector. In fairness to the administrators, if everyone listens, then we have long periods of nothing but crickets. Perhaps we should at the very minimum just check in from time to time, and let others know what is happening with your ham activity, projects, shack upgrades, etc. We could certainly get some chatter going, enough so that we get Jim or Brian to remind us what is and is not appropriate! :-) Jim Wd5JKO From k9cox at charter.net Sat Jul 15 19:43:38 2017 From: k9cox at charter.net (Ross Stenberg) Date: Sat, 15 Jul 2017 18:43:38 -0500 Subject: [AMRadio] The group In-Reply-To: <1810802195.1185365.1500160377848@mail.yahoo.com> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> <1810802195.1185365.1500160377848@mail.yahoo.com> Message-ID: The people have spoken From archernf at earthlink.net Sat Jul 15 19:49:38 2017 From: archernf at earthlink.net (Neil Foster) Date: Sat, 15 Jul 2017 19:49:38 -0400 Subject: [AMRadio] Hammarlund "E" Coil Message-ID: <596AAA12.9050501@earthlink.net> Hello, I am helping a friend look for an "E" coil for a National 50/60. However I understand from the National HRO gurus that an earlier one will fit with shimming. I am not a National guy but a Hammarlund one. Any assistance is appreciated. Thanks Neil N4FN -- From k4kyv at charter.net Sat Jul 15 23:09:40 2017 From: k4kyv at charter.net (Donald Chester) Date: Sat, 15 Jul 2017 22:09:40 -0500 Subject: [AMRadio] The group Message-ID: <000101d2fde0$f7197cb0$e54c7610$@charter.net> Let's keep it. If activity has diminished, that means less work and hassle to administer, monitor and maintain it. But I have noticed that activity tends to come in clusters; it may go for days or even a week or two with no posts, but as soon as something major occurs concerning AM, including potential threats to our operating privileges, it comes alive with activity. Also, if someone posts something, controversial or not, that particularly grabs attention, a long thread of replies often follows. That's exactly what I have always thought the purpose of this list was. The e-mail reflector is a more instant and direct way of communicating than are the various web forums. Not everyone who subscribes to the web forums checks them every day, but the e-mail notification arrives in real time, or at least within the same day for those of us who have opted for digest form. I think it's an essential supplement to the popular web forums. Regarding dearth of activity, I have noticed that recently on the web forums too, and even over the air. Lately, the lack of over-the-air activity has seemed a bit discouraging and made me wonder if I would have gone to all the trouble to construct my present antenna system and station if activity had already dwindled to what it is to-day, at the time when I first started to put it all together back in the early 80s. Blame some (but not all) of it on band condx and summer QRN, as well as summer activities that draw people away from their electronic devices. It takes a lot more effort to start up a mailing list, than to keep one going that has been running for years, just as it takes more to build a station from ground up and put it on the air than to keep one going after it's already built, barring a catastrophe like major storm damage or a fire. I noticed that interest in this list dwindled following the debacle over buy/sell/trade messages, when the sub-list was formed for trading. Things immediately started to dwindle, and after the sub-list was discontinued and trade messages once more returned to this list, it never quite fully recovered. 73, Don k4kyv > -----Original Message----- > From: amradio-bounces at mailman.qth.net [mailto:amradio- > bounces at mailman.qth.net] On Behalf Of w5jo at brightok.net > Sent: Friday, 14 July, 2017 16:07 > To: AM Radio List > Subject: [AMRadio] The group > > I have been talking to Brian, W5AMI about this list lately. > > Given the lack of activity and postings we have decided to terminate it. > > Even Boatanchors has diminished postings. So if you do not want to > terminate this group, then post an answer. > > Otherwise it will go away soon. > > 73 all, > > Jim > W5JO > Moderator --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From k4kyv at charter.net Sat Jul 15 23:17:19 2017 From: k4kyv at charter.net (Donald Chester) Date: Sat, 15 Jul 2017 22:17:19 -0500 Subject: [AMRadio] RCA Transformer ID? Message-ID: <000301d2fde2$08c489e0$1a4d9da0$@charter.net> It's a modulation transformer, but wasn't designed for voice. Thousands of them must have been released as surplus after WWII; it may have been the most popular modulation transformer for KW rigs in the early 1950s. It was designed by RCA for tone modulated CW (MCW) on Liberty Ships during the war. Definitely not broadcast iron, the audio quality is on par with low-cost "amateur radio quality" multi-match modulation transformers, such as the UTC S-22 and maybe ever the VM- series. They display enough phase shift distortion to be visible on a scope when running sine wave tone modulation near 100%, but still work pretty well for ham stations. One of the drawbacks is the 5500:5500 (one to one) turns ratio. This causes a mis-match with most of the popular modulator tubes, but the distortion level is tolerable. It has a tertiary winding to modulate the screen of a tetrode or pentode. The turns ratio gives good positive modulation peaks if the proper modulator tubes are used, for example a quad of 811-As in push-pull/parallel. The name plate figures, giving impedance, turns ratio, maximum final amplifier plate current through the secondary, plate voltage and modulator power rating, don't add up. Although zillions of these transformers circulated after the war, very few, if any of the transmitter they went into have appeared on the surplus market, or even any descriptions, technical or otherwise of the actual transmitters. It has always been somewhat of a mystery item. Don k4kyv > -----Original Message----- > From: amradio-bounces at mailman.qth.net [mailto:amradio- > bounces at mailman.qth.net] On Behalf Of Mike Durff via AMRadio > Sent: Friday, 14 July, 2017 19:39 > To: amradio at mailman.qth.net > Subject: [AMRadio] RCA Transformer ID? > > RCA 901765-501 Tag says:Class = ModulationPri= 5500 ohmssec = 5500 ohms. > I thought it was a modulation transformer, but others say no. Google > doesn't yield conclusive results. > Any guesses? > Thanks, Durff > __________________________________________________________ > ____ > Our Main Website: http://www.amfone.net AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: > http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > k4kyv at charter.net --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From k4kyv at charter.net Sat Jul 15 23:44:33 2017 From: k4kyv at charter.net (Donald Chester) Date: Sat, 15 Jul 2017 22:44:33 -0500 Subject: [AMRadio] The group Message-ID: <000a01d2fde5$d6b5c320$84214960$@charter.net> Something that no doubt diminishes the apparent volume of activity on this and other lists, is an error when replying to a posted message, which I sometimes find myself committing. One must remember to click "Reply All" and not just "Reply" when composing a response. If you click "Reply", your response will be sent only to the originator of the message and not to the whole list. "Reply All" sends a copy to the list and to the sender. This may be annoying to the sender, who receives two copies of the same message, the direct one and the one via the list. At least that's the way it works with my e-mail program. Better still, edit what's in the "To" bar to include only "amradio at mailman.qth.net", unless you specifically wish to respond privately to the originator. Responding privately to the originator deprives others on the list of your input to the topic. I frequently catch myself in this error, and then have to re-send a copy of the message to the list if I want others to see it. Don k4kyv --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From murph1 at aol.com Sun Jul 16 07:40:28 2017 From: murph1 at aol.com (Randall Murphree) Date: Sun, 16 Jul 2017 07:40:28 -0400 Subject: [AMRadio] Am Radio Reflector Message-ID: <15d4b3321bf-5d65-8ed6@webprd-a02.mail.aol.com> I don't usually put in my two cents in, but even though most of us old guys have a lot of knowledge, some of the new guys do try AM and it is helpful. I find info on here all the time that I can use as a collector. Keep it coming. Randall, W4DEU From rsq14adam1 at hotmail.com Sun Jul 16 15:53:28 2017 From: rsq14adam1 at hotmail.com (C.L. Mitchell) Date: Sun, 16 Jul 2017 19:53:28 +0000 Subject: [AMRadio] RCA Transformer ID? In-Reply-To: <000301d2fde2$08c489e0$1a4d9da0$@charter.net> References: <000301d2fde2$08c489e0$1a4d9da0$@charter.net> Message-ID: The only info I have come up with on the Liberty Ship radio gear is here: http://jproc.ca/ve3fab/jbradrm.html [http://jproc.ca/ve3fab/jbrr1.jpg] SS John Brown Radio Room - jproc.ca jproc.ca S.S. JOHN BROWN RADIO ROOM Liberty ship was the name given to the EC2-S-C1 type ship designed for "Emergency" construction by the United States Maritime Commission in ... Mitch, K9PNP ________________________________ From: amradio-bounces at mailman.qth.net on behalf of Donald Chester Sent: Saturday, July 15, 2017 10:17 PM To: amradio at mailman.qth.net Subject: Re: [AMRadio] RCA Transformer ID? It's a modulation transformer, but wasn't designed for voice. Thousands of them must have been released as surplus after WWII; it may have been the most popular modulation transformer for KW rigs in the early 1950s. It was designed by RCA for tone modulated CW (MCW) on Liberty Ships during the war. Definitely not broadcast iron, the audio quality is on par with low-cost "amateur radio quality" multi-match modulation transformers, such as the UTC S-22 and maybe ever the VM- series. They display enough phase shift distortion to be visible on a scope when running sine wave tone modulation near 100%, but still work pretty well for ham stations. One of the drawbacks is the 5500:5500 (one to one) turns ratio. This causes a mis-match with most of the popular modulator tubes, but the distortion level is tolerable. It has a tertiary winding to modulate the screen of a tetrode or pentode. The turns ratio gives good positive modulation peaks if the proper modulator tubes are used, for example a quad of 811-As in push-pull/parallel. The name plate figures, giving impedance, turns ratio, maximum final amplifier plate current through the secondary, plate voltage and modulator power rating, don't add up. Although zillions of these transformers circulated after the war, very few, if any of the transmitter they went into have appeared on the surplus market, or even any descriptions, technical or otherwise of the actual transmitters. It has always been somewhat of a mystery item. Don k4kyv > -----Original Message----- > From: amradio-bounces at mailman.qth.net [mailto:amradio- > bounces at mailman.qth.net] On Behalf Of Mike Durff via AMRadio > Sent: Friday, 14 July, 2017 19:39 > To: amradio at mailman.qth.net > Subject: [AMRadio] RCA Transformer ID? > > RCA 901765-501 Tag says:Class = ModulationPri= 5500 ohmssec = 5500 ohms. > I thought it was a modulation transformer, but others say no. Google > doesn't yield conclusive results. > Any guesses? > Thanks, Durff > __________________________________________________________ > ____ > Our Main Website: http://www.amfone.net AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: > http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > k4kyv at charter.net --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rsq14adam1 at hotmail.com From donroden at hiwaay.net Sun Jul 16 15:59:07 2017 From: donroden at hiwaay.net (donroden at hiwaay.net) Date: Sun, 16 Jul 2017 14:59:07 -0500 Subject: [AMRadio] [AM Radio] The group In-Reply-To: <59693ec6.5206630a.98e10.75d0@mx.google.com> References: <3CA9A529A6264EAEAEA6775C1C4CF92B@JimPC> <1704101558.3075997.1500067034015.JavaMail.zimbra@comcast.net> <07e51daf-6797-fc3b-d291-ca660b2924ea@comcast.net> <59693ec6.5206630a.98e10.75d0@mx.google.com> Message-ID: <20170716145907.Horde.pU1XOc5eoQUyJDEhq4_60rW@webmail.hiwaay.net> Quoting Paul Baldock : > I think there would be more interest in this group if members would > actually get on the air, and maybe on a band that you might talk to > somebody other than across town. Paul, I agree !! And I'm going to make a push to get my EFJ on by this winter. Don W4DNR DonR From mjcal77 at yahoo.com Sun Jul 16 18:25:24 2017 From: mjcal77 at yahoo.com (CL in NC) Date: Sun, 16 Jul 2017 22:25:24 +0000 (UTC) Subject: [AMRadio] Liberty Ship RX References: <546481019.1361999.1500243924642.ref@mail.yahoo.com> Message-ID: <546481019.1361999.1500243924642@mail.yahoo.com> When I followed the link sent here about the Liberty Ship radio room, I saw the later version of my receiver I restored to as close to original as I could, a while back. Don't know if the attached pic will post or not. The RX, a Mackay 128, had been modified in the PS section, and it normally had a jack field on the back apron to accommodate various power options, all that had been changed or the chassis drilled for other additions. This is only the VLF model, not the one shown in the John Brown radio room that went to 25MC. The metal trim around the dial on the front panel was in very bad shape, but, for some reason, inside the radio, there were 3 more identical versions of that trim piece used as spacers. Since they were sandwiched together, they were in perfect shape, so just swapped one out. The front panel also was sickly, but, all the writing was raised lettering, so, sanded the rust off, gave it a coat of gray as close to the original as I could, and hit all the letters with sandpaper and brought them out like new. The audio out stage had been modified for basic transformer output, and I returned it to original, consisting of a 22uh choke in the plate lead of the audio amp and capacitor coupling to the headphone jack. Of all my VLF stuff, which consists of an RAK, RCH, R390A with Palomar converter, BC348, and several aviation beacon receivers, this is easiest to operate and has excellent sensitivity. Now, if we just had more realistic regulations pending on the new VLF bands instead of 1 watt and a 50 foot antenna, including feedline.... Charlie, W4MEC in NC From kdm at ctcn.net Sun Jul 16 18:41:55 2017 From: kdm at ctcn.net (Kenneth D. Moak) Date: Sun, 16 Jul 2017 18:41:55 -0400 Subject: [AMRadio] Confessions of an AMRadio Reader In-Reply-To: References: Message-ID: I'm guilty! I don't think I've ever posted to the reflector, but I've read every post. For 40 years I've listened to AM or later working AM. Often when I was supposed to be: 1. Asleep (under the covers). 2. Doing homework. 3. Working. 4. Helping with the kids. 5. Enjoying Retirement i.e. mowing the grass :-( My start in AM: "The Marine Corps Marching Band Changed My Life;" January 2015, K9YA Telegraph; http://www.k9ya.org I don't do Fakebook or any other "social media" because like Mike, K5UJ says: Ham Radio is my social media. Right now my XYL, KM8Q and I are fighting her battle with brain cancer, and as she wins it I hope to return to AM with the passion that we once had. For now, we enjoy AM through AMRadio and a few other web pages. I appreciate the effort everyone makes to keep AM alive. Ken, KM8AM Urbana, OH From Commtekman at aol.com Sun Jul 16 18:52:40 2017 From: Commtekman at aol.com (Commtekman at aol.com) Date: Sun, 16 Jul 2017 18:52:40 -0400 Subject: [AMRadio] [AM Radio] The group Message-ID: <29ac15.1ff37307.469d4838@aol.com> I will have my AC hooked up in a few hours and also my heater for the coming winter, perhaps I can see if I can get my T-368E to talk again- Bob K6OSM Garderville, NV In a message dated 7/16/2017 1:03:14 P.M. Pacific Daylight Time, donroden at hiwaay.net writes: Quoting Paul Baldock : > I think there would be more interest in this group if members would > actually get on the air, and maybe on a band that you might talk to > somebody other than across town. Paul, I agree !! And I'm going to make a push to get my EFJ on by this winter. Don W4DNR DonR ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to commtekman at aol.com From bguyger at yahoo.com Sun Jul 16 20:18:07 2017 From: bguyger at yahoo.com (Bill Guyger) Date: Sun, 16 Jul 2017 19:18:07 -0500 Subject: [AMRadio] RCA Transformer ID? In-Reply-To: References: <000301d2fde2$08c489e0$1a4d9da0$@charter.net> Message-ID: <5F534288-987B-41A2-8A33-0CC03A8A6907@yahoo.com> Haven't had a chance to look at these links, I been out in the field at the KTCK transmitter site making adjustments to two of the ATU's with temps in the mid to upper 90's (thankfully my laptop and Network Analyzer didn't crap out because of the heat in the doghouses). The talk about liberty ships reminded me of an engineer that we had at KLIF when I started working for Susquehanna back in the 80's. He had been a radio operator on liberty ships and told me that his backup transmitter was spark gap. In his 70's back then he could still do 60 wpm cw. Bill AD5OL Sent from my iPhone > On Jul 16, 2017, at 2:53 PM, C.L. Mitchell wrote: > > The only info I have come up with on the Liberty Ship radio gear is here: > > > http://jproc.ca/ve3fab/jbradrm.html > > [http://jproc.ca/ve3fab/jbrr1.jpg] > > SS John Brown Radio Room - jproc.ca > jproc.ca > S.S. JOHN BROWN RADIO ROOM Liberty ship was the name given to the EC2-S-C1 type ship designed for "Emergency" construction by the United States Maritime Commission in ... > > Mitch, K9PNP > > > ________________________________ > From: amradio-bounces at mailman.qth.net on behalf of Donald Chester > Sent: Saturday, July 15, 2017 10:17 PM > To: amradio at mailman.qth.net > Subject: Re: [AMRadio] RCA Transformer ID? > > > It's a modulation transformer, but wasn't designed for voice. Thousands of > them must have been released as surplus after WWII; it may have been the > most popular modulation transformer for KW rigs in the early 1950s. It was > designed by RCA for tone modulated CW (MCW) on Liberty Ships during the war. > Definitely not broadcast iron, the audio quality is on par with low-cost > "amateur radio quality" multi-match modulation transformers, such as the UTC > S-22 and maybe ever the VM- series. They display enough phase shift > distortion to be visible on a scope when running sine wave tone modulation > near 100%, but still work pretty well for ham stations. > > One of the drawbacks is the 5500:5500 (one to one) turns ratio. This causes > a mis-match with most of the popular modulator tubes, but the distortion > level is tolerable. It has a tertiary winding to modulate the screen of a > tetrode or pentode. The turns ratio gives good positive modulation peaks if > the proper modulator tubes are used, for example a quad of 811-As in > push-pull/parallel. > > The name plate figures, giving impedance, turns ratio, maximum final > amplifier plate current through the secondary, plate voltage and modulator > power rating, don't add up. > > Although zillions of these transformers circulated after the war, very few, > if any of the transmitter they went into have appeared on the surplus > market, or even any descriptions, technical or otherwise of the actual > transmitters. It has always been somewhat of a mystery item. > > Don k4kyv > >> -----Original Message----- >> From: amradio-bounces at mailman.qth.net [mailto:amradio- >> bounces at mailman.qth.net] On Behalf Of Mike Durff via AMRadio >> Sent: Friday, 14 July, 2017 19:39 >> To: amradio at mailman.qth.net >> Subject: [AMRadio] RCA Transformer ID? >> >> RCA 901765-501 Tag says:Class = ModulationPri= 5500 ohmssec = 5500 ohms. >> I thought it was a modulation transformer, but others say no. Google >> doesn't yield conclusive results. >> Any guesses? >> Thanks, Durff >> __________________________________________________________ >> ____ >> Our Main Website: http://www.amfone.net AMRadio mailing list >> Archives: http://mailman.qth.net/pipermail/amradio/ >> List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: >> http://mailman.qth.net/mailman/listinfo/amradio >> Post: AMRadio at mailman.qth.net >> To unsubscribe, send an email to amradio-request at mailman.qth.net with >> the word unsubscribe in the message body. >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> k4kyv at charter.net > > > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rsq14adam1 at hotmail.com > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to bguyger at yahoo.com From ne1s at securespeed.us Mon Jul 17 06:52:19 2017 From: ne1s at securespeed.us (Larry Szendrei) Date: Mon, 17 Jul 2017 06:52:19 -0400 Subject: [AMRadio] Liberty Ship RX In-Reply-To: <546481019.1361999.1500243924642@mail.yahoo.com> References: <546481019.1361999.1500243924642.ref@mail.yahoo.com> <546481019.1361999.1500243924642@mail.yahoo.com> Message-ID: On 7/16/17 6:25 PM, CL in NC via AMRadio wrote: > The audio out stage had been modified for basic transformer output, and I returned it to original, consisting of a 22uh choke in the plate lead of the audio amp and capacitor coupling to the headphone jack. Hi Charlie, Not to pick nits, but are you sure you mean 22uH? 22H would be more like it. 73, -Larry/NE1S From jcandela at prodigy.net Mon Jul 17 07:33:34 2017 From: jcandela at prodigy.net (Jim Candela) Date: Mon, 17 Jul 2017 11:33:34 +0000 (UTC) Subject: [AMRadio] HV Capacitor question References: <1145639955.1821626.1500291214546.ref@mail.yahoo.com> Message-ID: <1145639955.1821626.1500291214546@mail.yahoo.com> I have an unusual question.? At my work, we use a electrostatic clamp to secure a silicon wafer while it gets an ion implant. The clamp controller supplies +/- 1.44 KV under the wafer, and uses a thin insulator to keep the HV current draw zero. >From each HV output, there are three .01uf? 3KV Z5U ceramic capacitors in parallel. These caps feed an op-amp oscillator that makes a ~ 20.5 Khz square wave. The frequency varies with wafer on or off the HV clamp. The presence of a wafer capacitively bridges the two HV electrodes under the wafer. When things are screwed up, the oscillator frequency is not repeatable. There could be many reasons, but for the sake of discussion, I've found it is usually the .01uf 3KV Z5U capacitors. If you look up similar capacitors, the Z5U designator for the ceramic dielectric is most telling. We might use one in ham radio for a plate bypass capacitor, but never in a high Q tuned circuit. The capacitance change with temperature is great, and they cannot stand much RF current. These capacitors are also piezoelectric, i.e. a sudden change in voltage across the capacitor will make an audible click...like a speaker!! I just learned another characteristic that I've not found anywhere in print. If I take a DVM, and clip the leads across the capacitor (used bad ones), I will measure a voltage!! Maybe something like 20mv, and varying with temperature by just grasping the device with my fingers. Now the kicker, wave the device with a heat gun, and as the device warms up, the voltage increases upwards rapidly to 1 volt!! A good (used) capacitor, same type, will never go beyond 20mv, hot or cold. Using the same DVM with a capacitance range, the measured value moves a lot (> +/- 50%), but which way depends on the test leads (red, black) are applied. I dismiss the measurement as invalid due to the voltage generated by the heated capacitor messes with the DVM measurement method. There seems to be something going on with the dielectric, or a mechanism from dielectric absorption.? One clue is with resistors. Some resistors such as leaded metal film type crimp the resistive element to the leads inside the package. Each crimp joins two dissimilar metals making a thermocouple (TC). Heating a TC generates a voltage. With the resistor example, two TC's are in series, and back to back, like +- in series with -+ such that the voltages offset each other so long as each TC is the same temperature.?? It would take dozens of TC's in series +-, +-, +-, etc. to make a volt... What is going on with my "bad" .01uf 3KV Ceramic Z5U capacitors?? JimWd5JKO From amvictor at ncsu.edu Mon Jul 17 08:50:55 2017 From: amvictor at ncsu.edu (Alan Victor) Date: Mon, 17 Jul 2017 08:50:55 -0400 Subject: [AMRadio] HV Capacitor question In-Reply-To: <1145639955.1821626.1500291214546@mail.yahoo.com> References: <1145639955.1821626.1500291214546.ref@mail.yahoo.com> <1145639955.1821626.1500291214546@mail.yahoo.com> Message-ID: I agree, you need to find out the composition of the dielectric. Many of the titanate variations share some of the properties you mentioned. Alan W4AMV On Mon, Jul 17, 2017 at 7:33 AM, Jim Candela wrote: > > I have an unusual question. > At my work, we use a electrostatic clamp to secure a silicon wafer while > it gets an ion implant. The clamp controller supplies +/- 1.44 KV under the > wafer, and uses a thin insulator to keep the HV current draw zero. > From each HV output, there are three .01uf 3KV Z5U ceramic capacitors in > parallel. These caps feed an op-amp oscillator that makes a ~ 20.5 Khz > square wave. The frequency varies with wafer on or off the HV clamp. The > presence of a wafer capacitively bridges the two HV electrodes under the > wafer. > When things are screwed up, the oscillator frequency is not repeatable. > There could be many reasons, but for the sake of discussion, I've found it > is usually the .01uf 3KV Z5U capacitors. > If you look up similar capacitors, the Z5U designator for the ceramic > dielectric is most telling. We might use one in ham radio for a plate > bypass capacitor, but never in a high Q tuned circuit. The capacitance > change with temperature is great, and they cannot stand much RF current. > These capacitors are also piezoelectric, i.e. a sudden change in voltage > across the capacitor will make an audible click...like a speaker!! > I just learned another characteristic that I've not found anywhere in > print. If I take a DVM, and clip the leads across the capacitor (used bad > ones), I will measure a voltage!! Maybe something like 20mv, and varying > with temperature by just grasping the device with my fingers. Now the > kicker, wave the device with a heat gun, and as the device warms up, the > voltage increases upwards rapidly to 1 volt!! A good (used) capacitor, same > type, will never go beyond 20mv, hot or cold. > Using the same DVM with a capacitance range, the measured value moves a > lot (> +/- 50%), but which way depends on the test leads (red, black) are > applied. I dismiss the measurement as invalid due to the voltage generated > by the heated capacitor messes with the DVM measurement method. > > There seems to be something going on with the dielectric, or a mechanism > from dielectric absorption. > > One clue is with resistors. Some resistors such as leaded metal film type > crimp the resistive element to the leads inside the package. Each crimp > joins two dissimilar metals making a thermocouple (TC). Heating a TC > generates a voltage. With the resistor example, two TC's are in series, and > back to back, like +- in series with -+ such that the voltages offset each > other so long as each TC is the same temperature. > It would take dozens of TC's in series +-, +-, +-, etc. to make a volt... > What is going on with my "bad" .01uf 3KV Ceramic Z5U capacitors?? > JimWd5JKO > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to amvictor at ncsu.edu From ars.w5omr at gmail.com Mon Jul 17 09:07:10 2017 From: ars.w5omr at gmail.com (ARS W5OMR) Date: Mon, 17 Jul 2017 08:07:10 -0500 Subject: [AMRadio] Liberty Ship RX In-Reply-To: References: <546481019.1361999.1500243924642.ref@mail.yahoo.com> <546481019.1361999.1500243924642@mail.yahoo.com> Message-ID: ?I bought a 60Hy choke from Brett/N2DTS in New Jersey, good for ~400mA. I paralleled a pair of 4uF @4kVDC oil-filled caps to couple the AC from the modulation transformer to the final side of the 60Hy choke. Heh ... Zero bias on a pair of 250TH's in class B is 1500vDC and ~220mA. That's where I ran it, and 1500vDC on the pair in the final at about 150mA. There was hardly any wiggle on the modulator plate current meter, but man it modulated the final to it's fullest! 73 = Best Regards, -Geoff/W5OMR On Mon, Jul 17, 2017 at 5:52 AM, Larry Szendrei wrote: > On 7/16/17 6:25 PM, CL in NC via AMRadio wrote: > >> The audio out stage had been modified for basic transformer output, and I >> returned it to original, consisting of a 22uh choke in the plate lead of >> the audio amp and capacitor coupling to the headphone jack. >> > > Hi Charlie, > > Not to pick nits, but are you sure you mean 22uH? 22H would be more like > it. > > 73, > -Larry/NE1S > > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ars.w5omr at gmail.com > -- Operating your AM rig without a scope is like driving our car at night without headlights. (~K4KYV) 73 = Best Regards, -Geoff/W5OMR From w5jo at brightok.net Mon Jul 17 09:32:53 2017 From: w5jo at brightok.net (w5jo at brightok.net) Date: Mon, 17 Jul 2017 08:32:53 -0500 Subject: [AMRadio] The Reflector Message-ID: <15275C22A2684E13B9ECD2B9BA6F99BD@JimPC> Hi all, Just a note to tell all of you that the reflector will remain active. The reason....because of the requests of many of you. We have decided to leave things as they are temporarily and see how things go. Remember, we want EVERYONE to feel comfortable when they post a question, comment or suggestion. Thanks to all of you for your comments. One thing I noticed is that this discussion migrated over to the Boatanchors List. My suggestion is to not cross post to other lists in any message. That avoids confusion on other reflectors. 73, Jim W5JO Moderator From mjcal77 at yahoo.com Mon Jul 17 10:30:22 2017 From: mjcal77 at yahoo.com (CL in NC) Date: Mon, 17 Jul 2017 14:30:22 +0000 (UTC) Subject: [AMRadio] Liberty Ship RX typo References: <511959886.1732516.1500301822541.ref@mail.yahoo.com> Message-ID: <511959886.1732516.1500301822541@mail.yahoo.com> Yes, it was 22 Henries not 22 microhenries on my comment about fixing the Mackay. de W4MEC From w5jv at hotmail.com Mon Jul 17 10:57:21 2017 From: w5jv at hotmail.com (Doug Hensley) Date: Mon, 17 Jul 2017 14:57:21 +0000 Subject: [AMRadio] For Sale: Liberty Ship class Navy Type TCP 10 channel Rx-Tx Message-ID: Wow, I didn't realize people were still interested in the old Liberty ship days. Well, I have some good news for the industrious collector out there. In my way is a Navy type TCP ship/shore Tx-Rx 10 channel set. Runs 75 watts AM and utilizes the frequency range 2000 to 3000 kHZ. With some effort it might just be tunable on 160 meters. I do not have the power supply, only the RF unit (which sat on top of the power supply). During those days, this range was the range used by port control stations. Pearl Harbor, for example, sat on 2716 kHZ from the beginning of radio through the Vietnam era. Size is the issue. Typical boatanchor and is about two feet square by 2 1/2 feet tall. Two people can lift it. I am located in central Louisiana (Baton Rouge). If interested, I can send a few pictures. No idea what to ask for it but i'm easy. Cheers, Doug W5JV From michjonezee at yahoo.com Mon Jul 17 11:31:35 2017 From: michjonezee at yahoo.com (Rich Jones) Date: Mon, 17 Jul 2017 15:31:35 +0000 (UTC) Subject: [AMRadio] AMRadio Digest, Vol 162, Issue 11 In-Reply-To: References: Message-ID: <60709599.2304375.1500305495668@mail.yahoo.com> I for one enjoy very much reading the posts on the amradio reflector. ?I believe encouraging "buy and sell" of AM equipment (only) would increase membership involvement ?Just my 2 cents worth. ?Yes, please keep the reflector going. ? Thanking you in advance. ? de Rich K8UV Michigan. On Saturday, July 15, 2017 5:28 PM, "amradio-request at mailman.qth.net" wrote: Send AMRadio mailing list submissions to ??? amradio at mailman.qth.net To subscribe or unsubscribe via the World Wide Web, visit ??? http://mailman.qth.net/mailman/listinfo/amradio or, via email, send a message with subject or body 'help' to ??? amradio-request at mailman.qth.net You can reach the person managing the list at ??? amradio-owner at mailman.qth.net When replying, please edit your Subject line so it is more specific than "Re: Contents of AMRadio digest..." Today's Topics: ? 1. AM activity on 15 and 10...and 6! (CL in NC) ? 2. Re: 10M open West Coast to East Coast (Larry Szendrei) ? 3. Re: 10M open West Coast to East Coast (Collin) ? 4. Re: 10M open West Coast to East Coast (donroden at hiwaay.net) ? 5. Re: 10M open West Coast to East Coast (donroden at hiwaay.net) ? 6. Re: The group (W5DVG - Patrick Rogers) ? 7. Re: The group (Jim Isbell, W5JAI) ---------------------------------------------------------------------- Message: 1 Date: Sat, 15 Jul 2017 16:59:20 +0000 (UTC) From: CL in NC To: Subject: [AMRadio] AM activity on 15 and 10...and 6! Message-ID: <1975212935.923912.1500137960038 at mail.yahoo.com> Content-Type: text/plain; charset=UTF-8 I was working on an RME 2-11 receiver and had it hooked to my 6 meter dipole.? Beacons started boiling in from the west and midwest.? I? got on my shack rig and yagi and called CQ on CW and SSB on their appropriate frequencies,? and AM on? 50.4......nada.? Don't forget 50.4 if you have the ability.? We have a local net here in my area that meets weekly.? There have been times where we had to quit because of all the AM sigs coming in, and start working them.? Funniest story involved a fellow in Nova Scotia who was apparently talking across town to somebody on 50.4.? He said he was going QRT due to all the QRM, while multiple stations were calling him. Charlie, W4MEC in NC ------------------------------ Message: 2 Date: Sat, 15 Jul 2017 13:04:14 -0400 From: Larry Szendrei To: amradio at mailman.qth.net Subject: Re: [AMRadio] 10M open West Coast to East Coast Message-ID: <2d01ec95-2bf4-56c6-87f7-1f0874679557 at securespeed.us> Content-Type: text/plain; charset=utf-8; format=flowed Nary a signal here in Maine at 1700Z. No beacons, nothing. Just made some noise on 29 MHz. Did I miss it? 73, -Larry/NE1S On 7/15/17 12:26 PM, Paul Baldock wrote: > 10M open West Coast to East Coast 16:25Z > > Listen 29.000 > > - Pau;l? KW7Y > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ne1s at securespeed.us > ------------------------------ Message: 3 Date: Sat, 15 Jul 2017 13:11:18 -0400 From: Collin To: Paul Baldock Cc: amradio at mailman.qth.net Subject: Re: [AMRadio] 10M open West Coast to East Coast Message-ID: <062E04D0-F4B4-44FE-9090-4682245B2DA0 at aol.com> Content-Type: text/plain;??? charset=us-ascii I am listening on 29.000 on East coast I here nothing Calling CQ Good Day, Collin > On Jul 15, 2017, at 12:26 PM, Paul Baldock wrote: > > 10M open West Coast to East Coast 16:25Z > > Listen 29.000 > > - Pau;l? KW7Y > > ------------------------------ Message: 4 Date: Sat, 15 Jul 2017 12:23:09 -0500 From: donroden at hiwaay.net To: amradio at mailman.qth.net Subject: Re: [AMRadio] 10M open West Coast to East Coast Message-ID: ??? <20170715122309.Horde.3xNkMIRjnVGa635SsVZGBp- at webmail.hiwaay.net> Content-Type: text/plain; charset=utf-8; format=flowed; DelSp=Yes Just lightning static here in North Alabama W4DNR Quoting Paul Baldock : > 10M open West Coast to East Coast 16:25Z > > Listen 29.000 > > - Pau;l? KW7Y > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donroden at hiwaay.net DonR ------------------------------ Message: 5 Date: Sat, 15 Jul 2017 12:23:09 -0500 From: donroden at hiwaay.net To: amradio at mailman.qth.net Subject: Re: [AMRadio] 10M open West Coast to East Coast Message-ID: ??? <20170715122309.Horde.3xNkMIRjnVGa635SsVZGBp- at webmail.hiwaay.net> Content-Type: text/plain; charset=utf-8; format=flowed; DelSp=Yes Just lightning static here in North Alabama W4DNR Quoting Paul Baldock : > 10M open West Coast to East Coast 16:25Z > > Listen 29.000 > > - Pau;l? KW7Y > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donroden at hiwaay.net DonR ------------------------------ Message: 6 Date: Sat, 15 Jul 2017 12:33:13 -0500 From: "W5DVG - Patrick Rogers" To: "'AM Radio List'" Subject: Re: [AMRadio] The group Message-ID: Content-Type: text/plain;??? charset="us-ascii" AM Radio: I already sent my "yes" to keep the group going. As busy as I am in retirement and having just read all the "keep it going" requests, I suddenly remembered why I joined the group. I have a Globe Scout 65A and a Heathkit Apache that I want to get on the air this fall. The GS works great save maybe changing out the filter cap. I have been collecting xtals for 80-40 meters. Have a Drake 2A receiver. Should be a great combo. The "Scratch Apache" I believe only needs new power supply caps as well. Looking forward hopefully to helpful comments as I get to the restoration work this fall. Can't wait to fire up the AM. Patrick 73's de Amateur Radio Station W5DVG Williamson County EM10cl ------------------------------ Message: 7 Date: Sat, 15 Jul 2017 15:28:51 -0500 From: "Jim Isbell, W5JAI" To: w5dvg at sbcglobal.net Cc: AM Radio List Subject: Re: [AMRadio] The group Message-ID: ??? Content-Type: text/plain; charset="UTF-8" I already voted yes. And I also watch the list because of the Atlas 210 and the Tempo One that I have and intend? to restore....as soon as I am retired enough to have time. Jim Isbell On Sat, Jul 15, 2017 at 12:33 PM, W5DVG - Patrick Rogers < w5dvg at sbcglobal.net> wrote: > AM Radio: > > I already sent my "yes" to keep the group going. As busy as I am in > retirement and having just read all the "keep it going" requests, I > suddenly > remembered why I joined the group. > > I have a Globe Scout 65A and a Heathkit Apache that I want to get on the > air > this fall. The GS works great save maybe changing out the filter cap. I > have > been collecting xtals for 80-40 meters. Have a Drake 2A receiver. Should be > a great combo. > > The "Scratch Apache" I believe only needs new power supply caps as well. > > Looking forward hopefully to helpful comments as I get to the restoration > work this fall. > > Can't wait to fire up the AM. > > Patrick > 73's de > Amateur Radio Station > W5DVG > Williamson County EM10cl > > > > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jim.isbell at gmail.com > ------------------------------ ______________________________________________________________ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio at mailman.qth.net End of AMRadio Digest, Vol 162, Issue 11 **************************************** From Commtekman at aol.com Mon Jul 17 12:15:27 2017 From: Commtekman at aol.com (Commtekman at aol.com) Date: Mon, 17 Jul 2017 12:15:27 -0400 Subject: [AMRadio] The Reflector Message-ID: Thank you Jim! We all appreciate your decision- Bob K6OSM In a message dated 7/17/2017 6:34:21 A.M. Pacific Daylight Time, w5jo at brightok.net writes: Hi all, Just a note to tell all of you that the reflector will remain active. The reason....because of the requests of many of you. We have decided to leave things as they are temporarily and see how things go. Remember, we want EVERYONE to feel comfortable when they post a question, comment or suggestion. Thanks to all of you for your comments. One thing I noticed is that this discussion migrated over to the Boatanchors List. My suggestion is to not cross post to other lists in any message. That avoids confusion on other reflectors. 73, Jim W5JO Moderator ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to commtekman at aol.com From k4kyv at charter.net Mon Jul 17 12:19:58 2017 From: k4kyv at charter.net (Donald Chester) Date: Mon, 17 Jul 2017 11:19:58 -0500 Subject: [AMRadio] HV Capacitor question In-Reply-To: <1145639955.1821626.1500291214546@mail.yahoo.com> References: <1145639955.1821626.1500291214546.ref@mail.yahoo.com> <1145639955.1821626.1500291214546@mail.yahoo.com> Message-ID: <002001d2ff18$88a7ec10$99f7c430$@charter.net> Maybe it's acting like an electret condenser. I recall (in early 1960s Popular Electronics I believe), an article on how to build an electret. You melted a specific kind of wax and poured the molten material between two plates of tinfoil while a high DC voltage was applied. After the wax cooled, the HV was removed, and the two plates retained a permanent HV charge. I have also noticed that with HV oil capacitors, once you discharge them by shorting out the terminals, they will recover after the short-circuit and the charge will bounce back, sometimes enough to cause a painful shock. That's why oil capacitors are usually shipped and stocked with a wire connected between the terminals. > I just learned another characteristic that I've not found anywhere in print. If I > take a DVM, and clip the leads across the capacitor (used bad ones), I will > measure a voltage!! Maybe something like 20mv, and varying with > temperature by just grasping the device with my fingers. Now the kicker, > wave the device with a heat gun, and as the device warms up, the voltage > increases upwards rapidly to 1 volt!! A good (used) capacitor, same type, will > never go beyond 20mv, hot or cold. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From k4kyv at charter.net Mon Jul 17 12:35:20 2017 From: k4kyv at charter.net (Donald Chester) Date: Mon, 17 Jul 2017 11:35:20 -0500 Subject: [AMRadio] Cross-posting Message-ID: <002301d2ff1a$ae6d0aa0$0b471fe0$@charter.net> > One thing I noticed is that this discussion migrated over to the Boatanchors > List. My suggestion is to not cross post to other lists in any message. > That avoids confusion on other reflectors. I'm not exactly sure what "cross posting" means. I always took it to mean copying a message from one list and re-posting it verbatim in another, without duly crediting the original list. Maybe you could clarify exactly what it means. I wouldn't think posting the same information regarding a specific topic on more than one list, the same thing as "cross-posting". Sometimes, particularly when seeking a certain piece of information, one might post the same message on several lists hoping that a response shows up on at least one. Likewise, starting a thread on another list with its own original OP, discussing a general decline of activity on mailing lists and including some of the opinions and suggestions taken from here, shouldn't be considered cross-posting. Or would it? Once something is posted on one list, does proper etiquette require that the same topic not be posted on other lists, at least right away? Don k4kyv --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From hallicrafterssr2000 at k9axn.com Mon Jul 17 12:37:38 2017 From: hallicrafterssr2000 at k9axn.com (sr2000 k9axn) Date: Mon, 17 Jul 2017 11:37:38 -0500 Subject: [AMRadio] HV Capacitor question In-Reply-To: <1145639955.1821626.1500291214546@mail.yahoo.com> References: <1145639955.1821626.1500291214546.ref@mail.yahoo.com> <1145639955.1821626.1500291214546@mail.yahoo.com> Message-ID: <60769ACE5C074AAFA27BBFE254CCE502@lilesjlPC> Jim, Take a look at Notes 1, 2, and 3 https://www.k9axn.com/_mgxroot/page_10835.html Kindest regards Jim K9AXN -----Original Message----- From: Jim Candela Sent: Monday, July 17, 2017 6:33 AM To: AMRadio at mailman.qth.net Subject: [AMRadio] HV Capacitor question I have an unusual question. At my work, we use a electrostatic clamp to secure a silicon wafer while it gets an ion implant. The clamp controller supplies +/- 1.44 KV under the wafer, and uses a thin insulator to keep the HV current draw zero. >From each HV output, there are three .01uf 3KV Z5U ceramic capacitors in parallel. These caps feed an op-amp oscillator that makes a ~ 20.5 Khz square wave. The frequency varies with wafer on or off the HV clamp. The presence of a wafer capacitively bridges the two HV electrodes under the wafer. When things are screwed up, the oscillator frequency is not repeatable. There could be many reasons, but for the sake of discussion, I've found it is usually the .01uf 3KV Z5U capacitors. If you look up similar capacitors, the Z5U designator for the ceramic dielectric is most telling. We might use one in ham radio for a plate bypass capacitor, but never in a high Q tuned circuit. The capacitance change with temperature is great, and they cannot stand much RF current. These capacitors are also piezoelectric, i.e. a sudden change in voltage across the capacitor will make an audible click...like a speaker!! I just learned another characteristic that I've not found anywhere in print. If I take a DVM, and clip the leads across the capacitor (used bad ones), I will measure a voltage!! Maybe something like 20mv, and varying with temperature by just grasping the device with my fingers. Now the kicker, wave the device with a heat gun, and as the device warms up, the voltage increases upwards rapidly to 1 volt!! A good (used) capacitor, same type, will never go beyond 20mv, hot or cold. Using the same DVM with a capacitance range, the measured value moves a lot (> +/- 50%), but which way depends on the test leads (red, black) are applied. I dismiss the measurement as invalid due to the voltage generated by the heated capacitor messes with the DVM measurement method. There seems to be something going on with the dielectric, or a mechanism from dielectric absorption. One clue is with resistors. Some resistors such as leaded metal film type crimp the resistive element to the leads inside the package. Each crimp joins two dissimilar metals making a thermocouple (TC). Heating a TC generates a voltage. With the resistor example, two TC's are in series, and back to back, like +- in series with -+ such that the voltages offset each other so long as each TC is the same temperature. It would take dozens of TC's in series +-, +-, +-, etc. to make a volt... What is going on with my "bad" .01uf 3KV Ceramic Z5U capacitors?? JimWd5JKO ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to hallicrafterssr2000 at k9axn.com From mjcal77 at yahoo.com Mon Jul 17 12:54:14 2017 From: mjcal77 at yahoo.com (CL in NC) Date: Mon, 17 Jul 2017 16:54:14 +0000 (UTC) Subject: [AMRadio] OT question References: <1322123079.1842065.1500310455003.ref@mail.yahoo.com> Message-ID: <1322123079.1842065.1500310455003@mail.yahoo.com> As kid in 1963, I hooked a Ford spark coil to a Lionel train transformer and discovered how 25,000 volts felt when you stuck a nail in HV terminal, not intentionally mind you, I was trying to build a Jacob's Ladder. This apparently addled my brain as my old timerdom only starts about 1964 when I got into this radio game. I would like to know from the older fellers, or anybody that has knowledge about this, which is about the upper end tuning on vintage radios. On their highest band, 10 meters, it seems to always go into the 34 and higher range, seldom to 6 meters though. Their sensitivity was not that great up there, neither was their stability. I don't think I ever copied anything but buzzes and clicks in that range. I know there was some utility service communications up there, stuff between power plants, and some low band VHF FM you had to slope tune, like the Highway Patrol in my area, but other than that, did anybody SWL anything above 10 meters on the old tube gear? Charlie, W4MEC in NC From jim.isbell at gmail.com Mon Jul 17 13:12:36 2017 From: jim.isbell at gmail.com (Jim Isbell, W5JAI) Date: Mon, 17 Jul 2017 12:12:36 -0500 Subject: [AMRadio] OT question In-Reply-To: References: <1322123079.1842065.1500310455003.ref@mail.yahoo.com> <1322123079.1842065.1500310455003@mail.yahoo.com> Message-ID: Yep, I made a contact on 223 Mc with a tube radio with a whip antenna (both ends) Modified downed pilot radios. About 6 miles. In1967 Jim Isbell On Mon, Jul 17, 2017 at 12:09 PM, Jim Isbell, W5JAI wrote: > Yep, I made a contact on 223 Mc with a tube radio at both ends. About 6 > miles back in1967 > > Jim Isbell > > > On Mon, Jul 17, 2017 at 11:54 AM, CL in NC via AMRadio < > amradio at mailman.qth.net> wrote: > >> As kid in 1963, I hooked a Ford spark coil to a Lionel train transformer >> and discovered how 25,000 volts felt when you stuck a nail in HV terminal, >> not intentionally mind you, I was trying to build a Jacob's Ladder. This >> apparently addled my brain as my old timerdom only starts about 1964 when I >> got into this radio game. I would like to know from the older fellers, or >> anybody that has knowledge about this, which is about the upper end tuning >> on vintage radios. On their highest band, 10 meters, it seems to always go >> into the 34 and higher range, seldom to 6 meters though. Their sensitivity >> was not that great up there, neither was their stability. I don't think I >> ever copied anything but buzzes and clicks in that range. I know there >> was some utility service communications up there, stuff between power >> plants, and some low band VHF FM you had to slope tune, like the Highway >> Patrol in my area, but other than that, did anybody SWL anything above 10 >> meters on the old tube ge >> ar? >> >> Charlie, W4MEC in NC >> ______________________________________________________________ >> Our Main Website: http://www.amfone.net >> AMRadio mailing list >> Archives: http://mailman.qth.net/pipermail/amradio/ >> List Rules (must read!): http://w5ami.net/amradiofaq.html >> List Home: http://mailman.qth.net/mailman/listinfo/amradio >> Post: AMRadio at mailman.qth.net >> To unsubscribe, send an email to amradio-request at mailman.qth.net with >> the word unsubscribe in the message body. >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to jim.isbell at gmail.com >> > > From jim.isbell at gmail.com Mon Jul 17 13:29:26 2017 From: jim.isbell at gmail.com (Jim Isbell, W5JAI) Date: Mon, 17 Jul 2017 12:29:26 -0500 Subject: [AMRadio] OT question In-Reply-To: References: <1322123079.1842065.1500310455003.ref@mail.yahoo.com> <1322123079.1842065.1500310455003@mail.yahoo.com> Message-ID: That wasnt SWL, but I also worked 40 states on six meters on a Haristahl Labs NE6 and on 10 meters I have worked across both oceans so if I could do two way then an SWL would be a cinch. I also worked over 1000 miles on an tube type 6 Meter FM radio. Jim Isbell On Mon, Jul 17, 2017 at 12:12 PM, Jim Isbell, W5JAI wrote: > Yep, I made a contact on 223 Mc with a tube radio with a whip antenna > (both ends) Modified downed pilot radios. About 6 miles. In1967 > > Jim Isbell > > > On Mon, Jul 17, 2017 at 12:09 PM, Jim Isbell, W5JAI > wrote: > >> Yep, I made a contact on 223 Mc with a tube radio at both ends. About 6 >> miles back in1967 >> >> Jim Isbell >> >> >> On Mon, Jul 17, 2017 at 11:54 AM, CL in NC via AMRadio < >> amradio at mailman.qth.net> wrote: >> >>> As kid in 1963, I hooked a Ford spark coil to a Lionel train >>> transformer and discovered how 25,000 volts felt when you stuck a nail in >>> HV terminal, not intentionally mind you, I was trying to build a Jacob's >>> Ladder. This apparently addled my brain as my old timerdom only starts >>> about 1964 when I got into this radio game. I would like to know from the >>> older fellers, or anybody that has knowledge about this, which is about >>> the upper end tuning on vintage radios. On their highest band, 10 meters, >>> it seems to always go into the 34 and higher range, seldom to 6 meters >>> though. Their sensitivity was not that great up there, neither was their >>> stability. I don't think I ever copied anything but buzzes and clicks in >>> that range. I know there was some utility service communications up >>> there, stuff between power plants, and some low band VHF FM you had to >>> slope tune, like the Highway Patrol in my area, but other than that, did >>> anybody SWL anything above 10 meters on the old tube ge >>> ar? >>> >>> Charlie, W4MEC in NC >>> ______________________________________________________________ >>> Our Main Website: http://www.amfone.net >>> AMRadio mailing list >>> Archives: http://mailman.qth.net/pipermail/amradio/ >>> List Rules (must read!): http://w5ami.net/amradiofaq.html >>> List Home: http://mailman.qth.net/mailman/listinfo/amradio >>> Post: AMRadio at mailman.qth.net >>> To unsubscribe, send an email to amradio-request at mailman.qth.net with >>> the word unsubscribe in the message body. >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to jim.isbell at gmail.com >>> >> >> > From tfne.tom at gmail.com Mon Jul 17 14:55:05 2017 From: tfne.tom at gmail.com (Tom) Date: Mon, 17 Jul 2017 12:55:05 -0600 Subject: [AMRadio] OT question In-Reply-To: <1322123079.1842065.1500310455003@mail.yahoo.com> References: <1322123079.1842065.1500310455003.ref@mail.yahoo.com> <1322123079.1842065.1500310455003@mail.yahoo.com> Message-ID: Back in the early 1980s, I bought a tube-type VHF-Low band receiver from a neighbor's tag sale. It was either an Electra or Regency if I recall correctly. Everything where I lived at the time was on low-band, and with about 10 feet of wire thrown out the window managed to log a few Midwestern public safety comms from SE NY. Especially liked to hear the power companies during the Summer. Started on my ham ticket shortly afterwards and got my Novice the day before my 15th birthday. A lot of those old low-band receivers are easily moved up to 6 meters. 73, Tom W1WSO/7 (ex-KA2UCP, KB1LKV) ---Sent via wireless device. Please excuse any spelling errors or typos. On Jul 17, 2017 10:54 AM, "CL in NC via AMRadio" wrote: > As kid in 1963, I hooked a Ford spark coil to a Lionel train transformer > and discovered how 25,000 volts felt when you stuck a nail in HV terminal, > not intentionally mind you, I was trying to build a Jacob's Ladder. This > apparently addled my brain as my old timerdom only starts about 1964 when I > got into this radio game. I would like to know from the older fellers, or > anybody that has knowledge about this, which is about the upper end tuning > on vintage radios. On their highest band, 10 meters, it seems to always go > into the 34 and higher range, seldom to 6 meters though. Their sensitivity > was not that great up there, neither was their stability. I don't think I > ever copied anything but buzzes and clicks in that range. I know there > was some utility service communications up there, stuff between power > plants, and some low band VHF FM you had to slope tune, like the Highway > Patrol in my area, but other than that, did anybody SWL anything above 10 > meters on the old tube ge > ar? > > Charlie, W4MEC in NC > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to tfne.tom at gmail.com > From w5jo at brightok.net Mon Jul 17 16:06:21 2017 From: w5jo at brightok.net (w5jo at brightok.net) Date: Mon, 17 Jul 2017 15:06:21 -0500 Subject: [AMRadio] Cross-posting In-Reply-To: <002301d2ff1a$ae6d0aa0$0b471fe0$@charter.net> References: <002301d2ff1a$ae6d0aa0$0b471fe0$@charter.net> Message-ID: What I am saying is when someone posts the same question to multiple reflectors and groups with the same message as you mentioned. I don't see a problem with that if it is a for sale ad but common communications that is posted that way can cause confusion when people try to answer. If they are members of more than one group then the answer comes from two groups. While your view that it can be beneficial, the recent discussion about closing this list was cross posted to the Boatanchors reflector and, I feel pretty certain, that those members who do not have membership here were confused. I have seen subjects started here without cross posting in the beginning, and were finished on Boatanchors. Not all members here are members of Boatanchors so they missed some of the discussion. I don't like the practice, but can't control what happens in that respect. Also I won't cause trouble for those who do it, but remember that if you start a discussion here, it would be nice to finish it here for everyone's benefit. And to a similar vein, I like to see answers to questions and posts here. So if you hit the Reply All button it will come back. You can edit the TO line by eliminating the originator's address so only one answer will hit their box. As everyone saw, we have numerous readers who stated that they benefit from the discussions here. I like that idea. Many times I see a message that is posted to AMRadio, Boatanchors,military reflectors, Heath reflectors and the like. Without thinking (imagine that) I hit reply all so as to post a public response and it goes to all the reflectors where I don't have a membership. Strangely, those places where I lack membership will send that message right back for some reason. How dare them....I answered the question. This is no big issue for me other than if you post a message here looking for an answer, it would be nice to see the replies. They even help me remember something or bring back grand memories. 73 all, Jim W5JO Moderator -----Original Message----- > One thing I noticed is that this discussion migrated over to the Boatanchors > List. My suggestion is to not cross post to other lists in any message. > That avoids confusion on other reflectors. I'm not exactly sure what "cross posting" means. I always took it to mean copying a message from one list and re-posting it verbatim in another, without duly crediting the original list. Maybe you could clarify exactly what it means. I wouldn't think posting the same information regarding a specific topic on more than one list, the same thing as "cross-posting". Sometimes, particularly when seeking a certain piece of information, one might post the same message on several lists hoping that a response shows up on at least one. Likewise, starting a thread on another list with its own original OP, discussing a general decline of activity on mailing lists and including some of the opinions and suggestions taken from here, shouldn't be considered cross-posting. Or would it? Once something is posted on one list, does proper etiquette require that the same topic not be posted on other lists, at least right away? Don k4kyv From ranickel at comcast.net Mon Jul 17 16:33:10 2017 From: ranickel at comcast.net (Robert Nickels) Date: Mon, 17 Jul 2017 15:33:10 -0500 Subject: [AMRadio] Cross-posting In-Reply-To: References: <002301d2ff1a$ae6d0aa0$0b471fe0$@charter.net> Message-ID: <44330843-937a-453b-a28d-2f7155f026de@comcast.net> On 7/17/2017 3:06 PM, w5jo at brightok.net wrote: > Without thinking (imagine that) I hit reply all so as to post a public > response and it goes to all the reflectors where I don't have a membership Exactly, Jim, and that's why I think the practice should be banned. Most reflectors are set (rightly IMHO) to require "Reply to All" for a message to go to the group, so if someone has cross-posted the reply will also go to those where the sender may not be a member unless one is careful to edit the reply. Far better to simply use one reflector at a time. If you don't get the answer you hope for, the repost to another one - sorta like trying different bands. Let me just add that The 5th annual CE Boatanchor will be held this weekend (July 22-23) at Storybrook Farms, Jonesborough, TN. There will be an exhibit area where you can display and demonstrate equipment from the 1940's to the mid-1960's, a variety of technical discussions and workshops and, new this year, a special events station. While the focus is on vintage SSB, those who enjoy AM and boatanchor radios in general are certainly welcome. For more information: http://www.ce-multiphase.com/ 73, Bob W9RAN From k4kyv at charter.net Mon Jul 17 17:58:34 2017 From: k4kyv at charter.net (Donald Chester) Date: Mon, 17 Jul 2017 16:58:34 -0500 Subject: [AMRadio] Cross-posting In-Reply-To: References: <002301d2ff1a$ae6d0aa0$0b471fe0$@charter.net> Message-ID: <000a01d2ff47$d66a0940$833e1bc0$@charter.net> > Many times I see a message that is posted to AMRadio, Boatanchors,military > reflectors, Heath reflectors and the like. Without thinking (imagine that) I hit > reply all so as to post a public response and it goes to all the reflectors where > I don't have a membership. Strangely, those places where I lack membership > will send that message right back for some reason. How dare them....I > answered the question. I would think the problem would lie mostly with someone composing a message and merely typing the addresses of multiple lists in the "To" bar, or in the "Cc" bar. IMO, one should at least send a separate OP message independently to each list, and maybe custom edit the original posting for each recipient. I don't subscribe to very many e-mail lists so that's not a problem for me, but I have on occasion started threads on the same topic on this list and on one of the web forums. Likewise, if I see a topic of interest on one list and re-post it on another because I think it might be of interest there, I always make sure to mention that I initially read it on another list, which I identify and give that list credit for being the original source, and not leave the impression that I'm the one who first thought of it. Don k4kyv --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From zengmeiste at aol.com Mon Jul 17 18:22:14 2017 From: zengmeiste at aol.com (Jammer) Date: Mon, 17 Jul 2017 18:22:14 -0400 Subject: [AMRadio] ditto Jim Sorenson's sentiment In-Reply-To: References: Message-ID: <15d52a50a9d-558f-da3d@webprd-a18.mail.aol.com> I vote AYE! for continuing. Granted, I'm a slow reader but the knowledge here is inestimable and irreplaceable. For those reasons alone it's a must-keep! 73 de KC9KEL Terry Bakowski [umm...a little message parsing would be a nice thing.....(grin)...] From lexnonscripta at usa.com Mon Jul 17 18:41:11 2017 From: lexnonscripta at usa.com (mark) Date: Mon, 17 Jul 2017 17:41:11 -0500 Subject: [AMRadio] B&W 5100 In-Reply-To: References: <002301d2ff1a$ae6d0aa0$0b471fe0$@charter.net> Message-ID: <9a91207e-bd78-c312-1668-87ea1a607286@usa.com> Hi All, I picked up a B&W 5100 - not the "B" version, but the first iteration. One of the issues is that someone drilled a hole just above the meter. I havent delved into the circuitry yet, do I dont know why that was done, but that hole bugs me and I'd like to put the radio back to stock. Anyone know of someone that has screened a face for one of these, or has some idea on how to go about a repair. Right now I am considering just filling it with a little weld from my mig, sanding it out and then of course, I need to re-do the front panel. ON the other hand, maybe someone has a skeleton and I can get the front panel. Ideas or comments welcome! Best 73' Mark Kd9cxh From oldradio at comcast.net Mon Jul 17 18:55:55 2017 From: oldradio at comcast.net (John Dilks) Date: Mon, 17 Jul 2017 18:55:55 -0400 (EDT) Subject: [AMRadio] B&W 5100 In-Reply-To: <9a91207e-bd78-c312-1668-87ea1a607286@usa.com> References: <002301d2ff1a$ae6d0aa0$0b471fe0$@charter.net> <9a91207e-bd78-c312-1668-87ea1a607286@usa.com> Message-ID: <1133041076.174996.1500332155984@connect.xfinity.com> Hi Mark?, You didn't mention the size? Depending on size, mounting a pilot light in the hole might cover it. Large jeweled pilot lights are 3/4" or 1"(forget) and the standard ones are smaller. I might have one for you if you want? Gotta look in my stash. 73, John Dilks, K2TQN Having fun smelling hot rosin and solder again. > > On July 17, 2017 at 6:41 PM mark wrote: > > Hi All, > > I picked up a B&W 5100 - not the "B" version, but the first iteration. > > One of the issues is that someone drilled a hole just above the meter. I > havent delved into the circuitry yet, do I dont know why that was done, > but that hole bugs me and I'd like to put the radio back to stock. > > Anyone know of someone that has screened a face for one of these, or has > some idea on how to go about a repair. Right now I am considering just > filling it with a little weld from my mig, sanding it out and then of > course, I need to re-do the front panel. > > ON the other hand, maybe someone has a skeleton and I can get the front > panel. > > Ideas or comments welcome! > > Best 73' > > Mark > Kd9cxh > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to oldradio at comcast.net > From ranchorobbo at gmail.com Tue Jul 18 06:13:54 2017 From: ranchorobbo at gmail.com (Rob Atkinson) Date: Tue, 18 Jul 2017 05:13:54 -0500 Subject: [AMRadio] B&W 5100 In-Reply-To: <1133041076.174996.1500332155984@connect.xfinity.com> References: <002301d2ff1a$ae6d0aa0$0b471fe0$@charter.net> <9a91207e-bd78-c312-1668-87ea1a607286@usa.com> <1133041076.174996.1500332155984@connect.xfinity.com> Message-ID: John, I am enjoying your new contribution to Electric Radio, "Dear Ed" but it isn't explained who Ed is or was. Please fill us in. Maybe I missed something but can't find anyone named Ed associated with the magazine or the letter. 73 Rob K5UJ On Mon, Jul 17, 2017 at 5:55 PM, John Dilks wrote: > Hi Mark?, > > You didn't mention the size? Depending on size, mounting a pilot light in the hole might cover it. Large jeweled pilot lights are 3/4" or 1"(forget) and the standard ones are smaller. I might have one for you if you want? Gotta look in my stash. > > 73, John Dilks, K2TQN > Having fun smelling hot rosin and solder again. > From w5jo at brightok.net Tue Jul 18 09:09:01 2017 From: w5jo at brightok.net (w5jo at brightok.net) Date: Tue, 18 Jul 2017 08:09:01 -0500 Subject: [AMRadio] Article in ER In-Reply-To: References: <002301d2ff1a$ae6d0aa0$0b471fe0$@charter.net><9a91207e-bd78-c312-1668-87ea1a607286@usa.com><1133041076.174996.1500332155984@connect.xfinity.com> Message-ID: Yes John, I thought all the work you did before might have tired you out. Always enjoy reading your musings. Jim W5JO -----Original Message----- John, I am enjoying your new contribution to Electric Radio, "Dear Ed" but it isn't explained who Ed is or was. Please fill us in. Maybe I missed something but can't find anyone named Ed associated with the magazine or the letter. 73 Rob K5UJ From michjonezee at yahoo.com Tue Jul 18 09:30:37 2017 From: michjonezee at yahoo.com (Rich Jones) Date: Tue, 18 Jul 2017 13:30:37 +0000 (UTC) Subject: [AMRadio] Liberty ship days References: <328480469.3070661.1500384637268.ref@mail.yahoo.com> Message-ID: <328480469.3070661.1500384637268@mail.yahoo.com> As teenager growing up in Portland, Oregon in the early 1960's we lived just above Ross Island on the west side of the Willamette River. Just below us was the Zidel ship yards were they were scrapping out Liberty Ships (a lot of them were built in Portland just downstream). ?I would take my folks wheel barrow and go down to the scrap yard where Zidel had acres of tables in large metal buildings with nothing but odds and ends from the Liberty Ships. ?Every thing sold for .25 cents a pound. Imagine how many resisters (each one in a cosmolene envelope) tubes, etc. you can get for a quarter? ?I found (every thing was new, never used) a Bunnell flame proof key, but best of all was a new, still in the boxNavy Gray speaker was the most expensive thing I bought, must have weighed at leas 10 lbs. ?A large round one, like the one you always see in the movies when the camera points at a navy boat speaker. ?Had a transformer with about 15 differentimpedance connections for any ohm reading one would need. ?I gave it to my Elmer who was an old WWII navy radioman for helping me get my novice ticket. ?Fond memories, I don't remember how many Liberty Ships went to the scrap heap but there were a lot. ?Love this reflector, keep up the great work. ?73 Rich K8UV ?SE Michigan. From jcandela at prodigy.net Tue Jul 18 14:24:45 2017 From: jcandela at prodigy.net (Jim Candela) Date: Tue, 18 Jul 2017 18:24:45 +0000 (UTC) Subject: [AMRadio] HV Capacitor question In-Reply-To: <60769ACE5C074AAFA27BBFE254CCE502@lilesjlPC> References: <1145639955.1821626.1500291214546.ref@mail.yahoo.com> <1145639955.1821626.1500291214546@mail.yahoo.com> <60769ACE5C074AAFA27BBFE254CCE502@lilesjlPC> Message-ID: <312068164.2929991.1500402285260@mail.yahoo.com> "Take a look at Notes 1, 2, and 3" Some good reading for sure. On the Central Electronics 20A the 6BA7 mixer B+ bypass cap (C73) is usually a .005uf Silver Mica. Change that out with a ceramic Z5U, and the gain drops a bunch, especially on 40m.The mixer uses a high Q tuned circuit, and the RF circulating current passes through that cap. I once tried an equal value polypropylene, and the gain was too high!! I had to put about 2 ohms in series with it to make the circuit behave. Those polypropylene's are low ESR caps with good high frequency capability. Back to my electrostatic clamp controller, I just ordered some poly caps from Mouser. The value is .033uf @ 3KV.? Two of those should replace six of the .01uf ceramic Z5U's in there before (2 groups of 3). My thinking is that the "bad" Z5U's that can generate up to 1 volt into 10 meg-ohm when hot just have a infinite number of series R-C networks within, and to deplete the stored charge, perhaps I can short them out and put them in an oven at 100 Celsius for several hours. Might be a fun experiment. Would also like to put a microamp meter across the cap, heat it, and see if I can achieve a reading above zero ua...Might find that I have a new form of power for a QRP rig!!? :-) Thanks for the comments guys. JimWd5JKO From: sr2000 k9axn To: Jim Candela ; AMRadio at mailman.qth.net Sent: Monday, July 17, 2017 11:37 AM Subject: Re: [AMRadio] HV Capacitor question Jim, Take a look at Notes 1, 2, and 3 https://www.k9axn.com/_mgxroot/page_10835.html Kindest regards Jim K9AXN From mjcal77 at yahoo.com Sat Jul 22 00:23:09 2017 From: mjcal77 at yahoo.com (CL in NC) Date: Sat, 22 Jul 2017 04:23:09 +0000 (UTC) Subject: [AMRadio] Going to have to draw it, or maybe not... References: <655539413.3084104.1500697389258.ref@mail.yahoo.com> Message-ID: <655539413.3084104.1500697389258@mail.yahoo.com> Does anybody have a schematic of the Heathkit HWA 17 FM transmit adapter? The schematic is no where on the internet. If not, does anybody know if it is a reactance modulator or a phase modulator? I bit the bullet and bought some of the Digikey 'crystals' that cost about $4 each, and you tell them what to program them for. Must be a quick process, as I ordered them and got a shipping confirmation a few hours later. This is an experiment to see if they can be made to work in vintage gear, I ordered a couple of them for HF and VHF, not considering what type of modulator the HWA17 actually is. They should work fine with a phase modulator, but might require a bit more work for the other. Will have to make up a little circuit board to mount the DIP style 4 pin chip to, hoping with a 5v B+, the output will be in the 2-4v P to P range and not need an amp. We'll see... said the blind man to his deaf daughter. Charlie, W4MEC in NC From jcandela at prodigy.net Sat Jul 22 08:10:08 2017 From: jcandela at prodigy.net (Jim Candela) Date: Sat, 22 Jul 2017 12:10:08 +0000 (UTC) Subject: [AMRadio] HV Capacitor question In-Reply-To: <312068164.2929991.1500402285260@mail.yahoo.com> References: <1145639955.1821626.1500291214546.ref@mail.yahoo.com> <1145639955.1821626.1500291214546@mail.yahoo.com> <60769ACE5C074AAFA27BBFE254CCE502@lilesjlPC> <312068164.2929991.1500402285260@mail.yahoo.com> Message-ID: <1807152913.2598189.1500725408298@mail.yahoo.com> I received the caps from Mouser, .033uf 3KV, Polypropylene, axial package. All three measure .032uf exactly with a Fluke 87 DVM. Switch to the 0-200mv range, and I read 0.00mv!! If I heat the cap body it stays there at 0.00mv. If I heat either end, I get about 2mv when HOT, and the polarity depends on which side I get hot. This is most likely because each lead is crimped inside causing a thermocouple from dissimilar metals being joined. This is the same effect I've seen with metal film resistors. I need to try these caps in the actual circuit mentioned. I have another cap story. Here in central Texas the weather has been HOT. My home AC system is about 17 years old, and has had trouble keeping up with the heat. I noticed that the blower motor in the air handler closet has been slowing down, and when that happens, the evaporator coils are prone to icing over. Some years ago I had a bad motor running capacitor (it was open, and bulging), and i was able to find a replacement on a Saturday. It was a 10uf 370vac can type. I measured the cap earlier this week, and it was close to 11 uf with my DVM on CAP range. Desperate, I bought another from Granger for $5. No change! Dam!! Already got a quote...$6500 for a new system.... :-( Remembering this thread, and rooting in the garage, I unearthed a 10uf 250vdc Wima brand polypropylene capacitor...With capacitors like this the AC rating is usually 60% of the DC rating, so a 250vdc cap would be a 150vac AC cap. That is a long way from 370vac!! So what could happen? It could short out and cause a fire? I added an inline 5A fuse, and then I try it.....Guess what, the air handler roars to life at its more youthful vigor, and the house is noticeably cooler as the vents are blowing a larger volume of air. Last night, 104 outside, the AC was cycling off and on holding the setpoint of 75. With the can cap, the AC would stay on for hours as the temp inched up 75, 76, 77, 78... I think my fan motor is failing, and the lower ESR of the polypropylene capacitor enables the old motor to behave itself. That capacitor is cold..no heating. JimWd5JKO From: Jim Candela To: sr2000 k9axn ; "AMRadio at mailman.qth.net" Sent: Tuesday, July 18, 2017 1:25 PM Subject: Re: [AMRadio] HV Capacitor question "Take a look at Notes 1, 2, and 3" Some good reading for sure. On the Central Electronics 20A the 6BA7 mixer B+ bypass cap (C73) is usually a .005uf Silver Mica. Change that out with a ceramic Z5U, and the gain drops a bunch, especially on 40m.The mixer uses a high Q tuned circuit, and the RF circulating current passes through that cap. I once tried an equal value polypropylene, and the gain was too high!! I had to put about 2 ohms in series with it to make the circuit behave. Those polypropylene's are low ESR caps with good high frequency capability. Back to my electrostatic clamp controller, I just ordered some poly caps from Mouser. The value is .033uf @ 3KV.? Two of those should replace six of the .01uf ceramic Z5U's in there before (2 groups of 3). My thinking is that the "bad" Z5U's that can generate up to 1 volt into 10 meg-ohm when hot just have a infinite number of series R-C networks within, and to deplete the stored charge, perhaps I can short them out and put them in an oven at 100 Celsius for several hours. Might be a fun experiment. Would also like to put a microamp meter across the cap, heat it, and see if I can achieve a reading above zero ua...Might find that I have a new form of power for a QRP rig!!? :-) Thanks for the comments guys. JimWd5JKO ? ? ? From: sr2000 k9axn To: Jim Candela ; AMRadio at mailman.qth.net Sent: Monday, July 17, 2017 11:37 AM Subject: Re: [AMRadio] HV Capacitor question ? Jim, Take a look at Notes 1, 2, and 3 https://www.k9axn.com/_mgxroot/page_10835.html Kindest regards Jim K9AXN ? ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jcandela at prodigy.net From mjcal77 at yahoo.com Sat Jul 22 12:18:00 2017 From: mjcal77 at yahoo.com (CL in NC) Date: Sat, 22 Jul 2017 16:18:00 +0000 (UTC) Subject: [AMRadio] Thanks to Tom References: <2113762945.3293136.1500740280951.ref@mail.yahoo.com> Message-ID: <2113762945.3293136.1500740280951@mail.yahoo.com> A thank you to Tom, K3TVC for the schematic and info page for the Heath HWA17 adapter. It does contain a phase modulator, so, after adapting, maybe those Digikey non-crystal crystals work. I can terrorize the land of FM foreign transceivers with Heathkit vintage, or call CQ on 144.200 with AM and have the SSB crowd tell me my balanced modulator...isn't. Charlie, W4MEC in NC From ranchorobbo at gmail.com Sat Jul 22 14:30:53 2017 From: ranchorobbo at gmail.com (Rob Atkinson) Date: Sat, 22 Jul 2017 13:30:53 -0500 Subject: [AMRadio] HV Capacitor question In-Reply-To: <1807152913.2598189.1500725408298@mail.yahoo.com> References: <1145639955.1821626.1500291214546.ref@mail.yahoo.com> <1145639955.1821626.1500291214546@mail.yahoo.com> <60769ACE5C074AAFA27BBFE254CCE502@lilesjlPC> <312068164.2929991.1500402285260@mail.yahoo.com> <1807152913.2598189.1500725408298@mail.yahoo.com> Message-ID: Last summer my ~37 year old Whirlpool central A/C system quit. The A frame in the furnace output plenum was iced over. I didn't know anything about how to fix that so I had my local HVAC guy come in. He's nearing retirement unfortunately because he's old enough to know how to work on a system that doesn't have a computer diagnosis pc board. The belt on the blower motor was okay because I had replaced that not long before this happened and the tension was right. He sprayed the A frame with Nu-Calgon Evap Foam No Rinse brand evaporator coil cleaner. Comes in 18 oz pressurized cans. Supposed to clean out the dirt in the A frame fins. The fix however was that the system was low on freon and he put in 2 1/2 pounds. The old refrigerant has a sunset on its manufacture by Dupont in a couple years, being forced by the EPA I believe. For now, they only make a little and it is rationed among contractors who each are allowed to only buy two small tanks of the stuff per week. A tank about the size of a bread box costs around 600 bucks now. Told me when my system loses freon next time it will be game over, a perfectly good A/C only because the refrigerant is unobtainium. And I know, what is made now won't last 37 years. Maybe you need refrigerant. Get it while you can. 73 Rob K5UJ From paul at paulbaldock.com Sat Jul 22 22:06:07 2017 From: paul at paulbaldock.com (Paul Baldock) Date: Sat, 22 Jul 2017 19:06:07 -0700 Subject: [AMRadio] WTB: Apache/Mohawk/Marauder knobs In-Reply-To: References: <1985714116.2738784.1500744675396.ref@mail.yahoo.com> <1985714116.2738784.1500744675396@mail.yahoo.com> Message-ID: <59740492.8d0c620a.9687d.4233@mx.google.com> I'm looking for 4 of ~1.25" knobs and 1 of ~1.75" knobs in brushed aluminum (not chrome). Thanks -Paul -KW7y From ranchorobbo at gmail.com Thu Jul 27 05:59:17 2017 From: ranchorobbo at gmail.com (Rob Atkinson) Date: Thu, 27 Jul 2017 04:59:17 -0500 Subject: [AMRadio] Bauer 707 in Reno Message-ID: listing says "make offer." http://www.thebdr.net/hotlinks/forsale.html#xmtr 73 Rob K5UJ From mjcal77 at yahoo.com Thu Jul 27 09:13:21 2017 From: mjcal77 at yahoo.com (CL in NC) Date: Thu, 27 Jul 2017 13:13:21 +0000 (UTC) Subject: [AMRadio] Cap question References: <282735418.640748.1501161201772.ref@mail.yahoo.com> Message-ID: <282735418.640748.1501161201772@mail.yahoo.com> Had to go back to find the story on the caps and reading volts across them when they got hot, but my comment was about the 10uf reading 11. Don't forget the old days of electrolytics had their tolerance ratings in many cases -20 to +80% of printed value, on even the really good ones. Even today, figuring when they built the rigs using caps like that, if a circuit called for a 40uf, if I can find a cap in the 32 to 73uf range in the proper voltage, at a good price, I'll get it. Trying to be a purist to the rebuild and cap specific, and find that 40uf at 450V that cost 16 bucks, when the 39uf of equivalent quality cost 2, I'll go cheap. In reference to the start cap, refrigerators and AC compressors can have their life extended by adding a 'Hard Start' kit, which is nothing more than a bigger start cap. I have a compressor that I put a kit in over 22 years ago, and it is still humming along. If you want a chuckle or two, look up the thread on the word refrigerator. Charlie, W4MEC in NC From kenw8ek at gmail.com Sat Jul 29 11:02:06 2017 From: kenw8ek at gmail.com (Ken, W8EK) Date: Sat, 29 Jul 2017 11:02:06 -0400 Subject: [AMRadio] MFJ Antenna Tuners, Keyer, and much more FS Message-ID: <37700292-7875-c29d-8874-f84a49ee6379@gmail.com> MFJ Items For Sale: Automatic Antenna Tuners, CW Keyer, Wall Wart Power Supplies, Speaker Mic, and more . . MFJ 993 B, IntelliTuner Automatic Antenna Tuner Automatically tunes unbalanced/balanced antennas, ultra fast. It has 20,000 memories, an antenna switch, and is an efficient L-network. You can select 300 Watts (6-1600 Ohms) or 150 Watts (6-3200 Ohms). It covers 1.8-30 MHz, and includes a 4:1 current balun, a Cross-Needle and Digital SWR/Wattmeter, and an audio SWR meter. It has a backlit LCD display, and a remote control port for interfacing with your radio. When you transmit, the MFJ-993B automatically tunes for minimum SWR and remembers your frequency and tuner settings. The next time you operate on that frequency and antenna, these tuner settings are instantly restored and you?re ready to operate in milliseconds! The MFJ-993B is a compact 10W x 2?H x 9D inches, and uses 12 ?15 V DC at about an amp. More info at http://www.mfjenterprises.com/Product.php?productid=MFJ-993B This one works 100%, and looks like it just came out of the box, new. MFJ sells these for $270. Buy this one for $185. . . MFJ 925 Automatic IntelliTuner Antenna Tuner: MFJ 925 super-compact IntelliTuner? automatic antenna tuners have been designed for today's compact home, portable, or mobile stations. With their small size, it complements today's compact HF transceivers, such as the IC-706MKIIG, IC-7000, FT- 857D, DX-70TH, TS-50S, etc. They can also be used as stand-alone automatic antenna tuners for any transceiver that has an output power of 2-200 watts SSB/CW from 1.8-30 MHz with an antenna impedance from 6-1,600 ohms. It has more than 10,000 Memories. It has a remote connector to interface with most modern radios, if desired. Features include: * Automatically matches antennas from 6 to 1,600 ohms impedance (SWR up to 32:1) * Handles 200 watts SSB/CW * Tunes in less than 15 seconds, usually less than 5 seconds * Over 20,000 non-volatile memories for tuner settings * Eight memory banks with over 2,500 memories per bank * Highly efficient switching L-network matching circuit * 1.8 to 30 MHz continuous frequency coverage * Audio SWR meter * Built-in frequency counter * Built-in radio interface circuitry for compatible tuners * Built-in bias tee * SO-239 coax-fed antenna connector * SO-239 coax to single wire adapter This one works 100% and looks like it just came out of the box from MFJ. Paper work is included for $135. . . MFJ-447 Slim Line Deluxe Keyer: This keyer is a low profile keyer with front panel speed, weight, tone, volume controls with buttons for message, semi-auto, tune, and power. There is an LED indicating power is on. On the back is a jack for speaker/headphones. It is 6 1/4 x 1 3/4 x 5 inches in size. It requires 12 V DC at about 300 ma, or can be powered by a 9 volt battery. It uses a Curtis keyer chip, which permits one to choose Iambic "A" or "B". This one is new, still in its original box. MFJ sells these for about $100. Buy this one for $65. . . MFJ 295 I Speaker Microphone Electret condenser mic. Earphone jack, 8 position swivel lapel clip, stretchable cord. $14 . . Wall Cube Power Supplies: 9 Volt DC at 500 ma This unit was used on a MFJ 422 keyer, but will also power other items needing 9 V DC. It has a 2.5 mm male plug on it, tip positive. $12 MFJ 1312 B, 12 V DC at 300 ma Coaxial plug with center positive. Still in original box. $12 MFJ 1315 12 volts DC at 500 ma, with 2.1 mm coaxial connector, center positive. $13 . . Cable for Icom Transceiver to Digital Controller: The package says "The Country Ham RTC2-Ic", TNC-Radio Cable w/ DIN and Mike Plug. For use with MFJ, AEA, and PacComm TNCs using a 5 pin DIN plug. The opposite end has a round Icom 8 pin connector as used on most Icom rigs. Pin outs are listed on the label. There is also an attached cable with 1/8 inch plug to go to the speaker jack. This cable is apparently new, still in its original bag. $15 . . I also have many other accessories available such as many different types of microphones, HTs, VHF and UHF rigs, HF and VHF/UHF antennas, connectors, miscellaneous accessories, etc. Just too many to list here. Please e-mail your requests. . Prices do not include shipping from Florida. Thanks. 73, Ken, W8EK Ken Simpson E-mail to W8EK at FLHam.net or W8EK at arrl.net Voice Phone (352) 732-8400 . From jcandela at prodigy.net Sat Jul 29 17:26:44 2017 From: jcandela at prodigy.net (Jim Candela) Date: Sat, 29 Jul 2017 21:26:44 +0000 (UTC) Subject: [AMRadio] HVAC RFI Question References: <43902980.1806385.1501363604516.ref@mail.yahoo.com> Message-ID: <43902980.1806385.1501363604516@mail.yahoo.com> My old 2001 vintage American Standard AC system is conking out. I am looking for a replacement, and this post is regarding HVAC induced RFI into the ham bands. In order to get the SEER rating to 20 or above, then both the AC air ventilator & outside compressor must be computerized, have variable speed motors, and even have a CAT-5 cable between the units. Those issues mentioned are all a red flag when it comes to RFI. One quote I got was to use Lennox, XC20 Condenser, and SL280 furnace and air handler, cost $10125. A more traditional system without the bells and whistles is about $6180. This does not include the duct rework that in my case has been haphazardly redone by the prior owner of the house. I wonder what experience the group might have regarding the various modern day HVAC systems, and HAM radio RFI. Go a step further, and I could see situations where a keyed up ham station might result in RF getting into the HVAC control system and creating a system that is susceptible to RF.? JimWd5JKO From bguyger at yahoo.com Sat Jul 29 18:50:05 2017 From: bguyger at yahoo.com (Bill Guyger) Date: Sat, 29 Jul 2017 17:50:05 -0500 Subject: [AMRadio] HVAC RFI Question In-Reply-To: <43902980.1806385.1501363604516@mail.yahoo.com> References: <43902980.1806385.1501363604516.ref@mail.yahoo.com> <43902980.1806385.1501363604516@mail.yahoo.com> Message-ID: While I haven't had to deal with this, there was an article in QST a couple of years ago by a ham who did have problems with his A/C unit. IIRC he was able to solve it with liberal application of ferrite beads / torroids. You might do a search for the article, but then you might not have an issue to begin with. You have other computers even in your shack, and chances are if you have any modern appliances they have micro controllers. I agree it's best to be prepared, but you might be ok. Bill AD5OL Sent from my iPhone > On Jul 29, 2017, at 4:26 PM, Jim Candela wrote: > > > > My old 2001 vintage American Standard AC system is conking out. I am looking for a replacement, and this post is regarding HVAC induced RFI into the ham bands. In order to get the SEER rating to 20 or above, then both the AC air ventilator & outside compressor must be computerized, have variable speed motors, and even have a CAT-5 cable between the units. > > Those issues mentioned are all a red flag when it comes to RFI. One quote I got was to use Lennox, XC20 Condenser, and SL280 furnace and air handler, cost $10125. A more traditional system without the bells and whistles is about $6180. This does not include the duct rework that in my case has been haphazardly redone by the prior owner of the house. > I wonder what experience the group might have regarding the various modern day HVAC systems, and HAM radio RFI. Go a step further, and I could see situations where a keyed up ham station might result in RF getting into the HVAC control system and creating a system that is susceptible to RF. > JimWd5JKO > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to bguyger at yahoo.com From steinerviolinist at gmail.com Sat Jul 29 19:06:36 2017 From: steinerviolinist at gmail.com (Oliver Steiner) Date: Sat, 29 Jul 2017 19:06:36 -0400 Subject: [AMRadio] HVAC RFI Question In-Reply-To: References: <43902980.1806385.1501363604516.ref@mail.yahoo.com> <43902980.1806385.1501363604516@mail.yahoo.com> Message-ID: When I go on the air, the electronic brain in my oven goes nuts. It seems like almost everything nowadays has some sort of computer circuitry and digital readout. I long for the days when ovens didn't have brains and were simply ovens. If there has to be some electrical add-on in an oven, I'd rather it would be an electron ray tube (green eye)! On 7/29/17, Bill Guyger via AMRadio wrote: > While I haven't had to deal with this, there was an article in QST a couple > of years ago by a ham who did have problems with his A/C unit. IIRC he was > able to solve it with liberal application of ferrite beads / torroids. You > might do a search for the article, but then you might not have an issue to > begin with. > > You have other computers even in your shack, and chances are if you have any > modern appliances they have micro controllers. I agree it's best to be > prepared, but you might be ok. > > Bill AD5OL > > Sent from my iPhone > >> On Jul 29, 2017, at 4:26 PM, Jim Candela wrote: >> >> >> >> My old 2001 vintage American Standard AC system is conking out. I am >> looking for a replacement, and this post is regarding HVAC induced RFI >> into the ham bands. In order to get the SEER rating to 20 or above, then >> both the AC air ventilator & outside compressor must be computerized, have >> variable speed motors, and even have a CAT-5 cable between the units. >> >> Those issues mentioned are all a red flag when it comes to RFI. One quote >> I got was to use Lennox, XC20 Condenser, and SL280 furnace and air >> handler, cost $10125. A more traditional system without the bells and >> whistles is about $6180. This does not include the duct rework that in my >> case has been haphazardly redone by the prior owner of the house. >> I wonder what experience the group might have regarding the various modern >> day HVAC systems, and HAM radio RFI. Go a step further, and I could see >> situations where a keyed up ham station might result in RF getting into >> the HVAC control system and creating a system that is susceptible to RF. >> JimWd5JKO >> ______________________________________________________________ >> Our Main Website: http://www.amfone.net >> AMRadio mailing list >> Archives: http://mailman.qth.net/pipermail/amradio/ >> List Rules (must read!): http://w5ami.net/amradiofaq.html >> List Home: http://mailman.qth.net/mailman/listinfo/amradio >> Post: AMRadio at mailman.qth.net >> To unsubscribe, send an email to amradio-request at mailman.qth.net with >> the word unsubscribe in the message body. >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to bguyger at yahoo.com > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to steinerviolinist at gmail.com > -- http://oliversteiner.com From frsahu0003 at embarqmail.com Sat Jul 29 20:07:20 2017 From: frsahu0003 at embarqmail.com (FRANK HUGHES hughes) Date: Sat, 29 Jul 2017 20:07:20 -0400 (EDT) Subject: [AMRadio] HVAC RFI Question In-Reply-To: <753918492.40785285.1501372961724.JavaMail.root@embarqmail.com> Message-ID: <1468967160.40787143.1501373240203.JavaMail.root@embarqmail.com> This last Winter, my son and I replaced the 1983 home heat pump with a new Goodman unit. As we did all the work ourselves, I used the savings toward a better controller, vs the old 24vac thermostat. The "ComfortNet" thing is a little computer. No 24 volt anything, uses shielded CAT-5 twisted pair to communicate with the compressor and air handler. To keep the RFI out, I made sure to ground one end of the CAT-5 braid, to make a drain for whatever RF gets into the house from the shack. So far, working fine. 73 Frank KJ4OLL PS(Another benefit - the XYL is no longer complaining about the house being 87 degrees w/ the old heat pump running flat out) From Foltarz at rocketmail.com Sat Jul 29 21:50:11 2017 From: Foltarz at rocketmail.com (Mark Foltarz) Date: Sun, 30 Jul 2017 01:50:11 +0000 (UTC) Subject: [AMRadio] HVAC RFI Question In-Reply-To: <43902980.1806385.1501363604516@mail.yahoo.com> References: <43902980.1806385.1501363604516.ref@mail.yahoo.com> <43902980.1806385.1501363604516@mail.yahoo.com> Message-ID: <1599121120.2322680.1501379411672@mail.yahoo.com> I replaced the old HVAC and thermostat with ?a modern multi speed, micro controlled, high seer unit with wifi controlled thermostat.I also was expecting problems since the compressor is within 6 feet of open ladder line.Running both a BC610 and a T368 at legal power and I have not experienced any problems.There has not been any issues with operation.?However, I am more concerned than ever about lightning strikes. de KA4JVYMark From: Jim Candela To: "amradio at mailman.qth.net" Sent: Saturday, July 29, 2017 5:27 PM Subject: [AMRadio] HVAC RFI Question My old 2001 vintage American Standard AC system is conking out. I am looking for a replacement, and this post is regarding HVAC induced RFI into the ham bands. In order to get the SEER rating to 20 or above, then both the AC air ventilator & outside compressor must be computerized, have variable speed motors, and even have a CAT-5 cable between the units. Those issues mentioned are all a red flag when it comes to RFI. One quote I got was to use Lennox, XC20 Condenser, and SL280 furnace and air handler, cost $10125. A more traditional system without the bells and whistles is about $6180. This does not include the duct rework that in my case has been haphazardly redone by the prior owner of the house. I wonder what experience the group might have regarding the various modern day HVAC systems, and HAM radio RFI. Go a step further, and I could see situations where a keyed up ham station might result in RF getting into the HVAC control system and creating a system that is susceptible to RF.? JimWd5JKO ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to foltarz at rocketmail.com From ranchorobbo at gmail.com Sat Jul 29 22:00:00 2017 From: ranchorobbo at gmail.com (Rob Atkinson) Date: Sat, 29 Jul 2017 21:00:00 -0500 Subject: [AMRadio] HVAC RFI Question In-Reply-To: <43902980.1806385.1501363604516@mail.yahoo.com> References: <43902980.1806385.1501363604516.ref@mail.yahoo.com> <43902980.1806385.1501363604516@mail.yahoo.com> Message-ID: it's the "internet of things." you gotta check your toaster with your smartphone. All my appliances are ancient. I'm going to shop at used appliance stores and hope I can stick with old stuff just like my radio gear. A/C etc. that's forced air is all RFI due to variable speed motors. All my forced air is from an old AO Smith motor belt driving a big blower. There are two speeds: on and off. Rob K5UJ From bguyger at yahoo.com Sat Jul 29 22:06:16 2017 From: bguyger at yahoo.com (Bill Guyger) Date: Sat, 29 Jul 2017 21:06:16 -0500 Subject: [AMRadio] HVAC RFI Question In-Reply-To: References: <43902980.1806385.1501363604516.ref@mail.yahoo.com> <43902980.1806385.1501363604516@mail.yahoo.com> Message-ID: <253533EA-1E72-4175-8E94-084EB9FAD0B8@yahoo.com> Let's hear it for Magic Eye Tubes!!! Bill AD5OL Sent from my iPhone > On Jul 29, 2017, at 6:06 PM, Oliver Steiner wrote: > > When I go on the air, the electronic brain in my oven goes nuts. It > seems like almost everything nowadays has some sort of computer > circuitry and digital readout. I long for the days when ovens didn't > have brains and were simply ovens. If there has to be some electrical > add-on in an oven, I'd rather it would be an electron ray tube (green > eye)! > >> On 7/29/17, Bill Guyger via AMRadio wrote: >> While I haven't had to deal with this, there was an article in QST a couple >> of years ago by a ham who did have problems with his A/C unit. IIRC he was >> able to solve it with liberal application of ferrite beads / torroids. You >> might do a search for the article, but then you might not have an issue to >> begin with. >> >> You have other computers even in your shack, and chances are if you have any >> modern appliances they have micro controllers. I agree it's best to be >> prepared, but you might be ok. >> >> Bill AD5OL >> >> Sent from my iPhone >> >>> On Jul 29, 2017, at 4:26 PM, Jim Candela wrote: >>> >>> >>> >>> My old 2001 vintage American Standard AC system is conking out. I am >>> looking for a replacement, and this post is regarding HVAC induced RFI >>> into the ham bands. In order to get the SEER rating to 20 or above, then >>> both the AC air ventilator & outside compressor must be computerized, have >>> variable speed motors, and even have a CAT-5 cable between the units. >>> >>> Those issues mentioned are all a red flag when it comes to RFI. One quote >>> I got was to use Lennox, XC20 Condenser, and SL280 furnace and air >>> handler, cost $10125. A more traditional system without the bells and >>> whistles is about $6180. This does not include the duct rework that in my >>> case has been haphazardly redone by the prior owner of the house. >>> I wonder what experience the group might have regarding the various modern >>> day HVAC systems, and HAM radio RFI. Go a step further, and I could see >>> situations where a keyed up ham station might result in RF getting into >>> the HVAC control system and creating a system that is susceptible to RF. >>> JimWd5JKO >>> ______________________________________________________________ >>> Our Main Website: http://www.amfone.net >>> AMRadio mailing list >>> Archives: http://mailman.qth.net/pipermail/amradio/ >>> List Rules (must read!): http://w5ami.net/amradiofaq.html >>> List Home: http://mailman.qth.net/mailman/listinfo/amradio >>> Post: AMRadio at mailman.qth.net >>> To unsubscribe, send an email to amradio-request at mailman.qth.net with >>> the word unsubscribe in the message body. >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to bguyger at yahoo.com >> >> ______________________________________________________________ >> Our Main Website: http://www.amfone.net >> AMRadio mailing list >> Archives: http://mailman.qth.net/pipermail/amradio/ >> List Rules (must read!): http://w5ami.net/amradiofaq.html >> List Home: http://mailman.qth.net/mailman/listinfo/amradio >> Post: AMRadio at mailman.qth.net >> To unsubscribe, send an email to amradio-request at mailman.qth.net with >> the word unsubscribe in the message body. >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to steinerviolinist at gmail.com >> > > > -- > http://oliversteiner.com From jcandela at prodigy.net Sat Jul 29 22:15:59 2017 From: jcandela at prodigy.net (Jim Candela) Date: Sun, 30 Jul 2017 02:15:59 +0000 (UTC) Subject: [AMRadio] HVAC RFI Question In-Reply-To: <1599121120.2322680.1501379411672@mail.yahoo.com> References: <43902980.1806385.1501363604516.ref@mail.yahoo.com> <43902980.1806385.1501363604516@mail.yahoo.com> <1599121120.2322680.1501379411672@mail.yahoo.com> Message-ID: <1215256281.1898925.1501380959586@mail.yahoo.com> Mark, ??? If you don't mind, what was the manufacturer of the system you purchased? Is the price I mentioned in my original post in line with what you paid for? My system is 4 Ton, with gas heat. ?? I would also worry a lot about lightning. I live in a single story ranch style house. The hamshack and antenna is at one side, and the HVAC on the other side. I took a direct hit to my tower several years ago. A neighbor said he saw it hit, and sustain. My rg8x feedline was vaporized...In the ham shack, I had the B&W coax switch set to ground. I lost NOTHING in the shack!! It did take out a channel of the lawn sprinkler controller, one solenoid underground, every connected HDMI port in the house, One garage door opener, the HVAC thermostat, and furnice controller PCB. Fortunately, the HVAC PCB was old enough that the 3rd parties had reverse engineered it. I had a new (non OEM) board installed for less than $200 including labor. JimWd5JKO From: Mark Foltarz via AMRadio To: AM Radio List Sent: Saturday, July 29, 2017 8:50 PM Subject: Re: [AMRadio] HVAC RFI Question I replaced the old HVAC and thermostat with ?a modern multi speed, micro controlled, high seer unit with wifi controlled thermostat.I also was expecting problems since the compressor is within 6 feet of open ladder line.Running both a BC610 and a T368 at legal power and I have not experienced any problems.There has not been any issues with operation.?However, I am more concerned than ever about lightning strikes. de KA4JVYMark From jcandela at prodigy.net Sun Jul 30 08:57:56 2017 From: jcandela at prodigy.net (Jim Candela) Date: Sun, 30 Jul 2017 12:57:56 +0000 (UTC) Subject: [AMRadio] HVAC RFI Question In-Reply-To: <1215256281.1898925.1501380959586@mail.yahoo.com> References: <43902980.1806385.1501363604516.ref@mail.yahoo.com> <43902980.1806385.1501363604516@mail.yahoo.com> <1599121120.2322680.1501379411672@mail.yahoo.com> <1215256281.1898925.1501380959586@mail.yahoo.com> Message-ID: <492801706.1216056.1501419476659@mail.yahoo.com> Thanks for all the input guys...... I am leaning away from the more sophisticated system. The extra $4K is a deterrent to me, and since the ROI could easily be offset by crap outs. The warranties often are parts only too, so failures can still be expensive. ?This morning I woke to the usual blower noise with no airflow. It was iced up again. I got this down now, an every 2-3 day event. The water return freezes too since it is wrapped with the freon lines. I get a 2 gallon bucket, and a funnel, and some boiling hot water. The hot water is to thaw the water return line...takes 3-4 tries, and that clears that. Then in parallel with that, I put on the gas heater to 80 degrees...within 30 minutes, I have 4 gallons of water into the bucket. Then switch to AC, cold air with lots of flow at the registers. Had 3 pounds of R22 added 6 weeks ago. The going rate for R22 is $110/pound. I got it for $75/#. The RFI issue seems to be a crapshoot. JimWd5JKO From: Jim Candela To: Mark Foltarz ; AM Radio List Sent: Saturday, July 29, 2017 9:16 PM Subject: Re: [AMRadio] HVAC RFI Question Mark, ??? If you don't mind, what was the manufacturer of the system you purchased? Is the price I mentioned in my original post in line with what you paid for? My system is 4 Ton, with gas heat. ?? I would also worry a lot about lightning. I live in a single story ranch style house. The hamshack and antenna is at one side, and the HVAC on the other side. I took a direct hit to my tower several years ago. A neighbor said he saw it hit, and sustain. My rg8x feedline was vaporized...In the ham shack, I had the B&W coax switch set to ground. I lost NOTHING in the shack!! It did take out a channel of the lawn sprinkler controller, one solenoid underground, every connected HDMI port in the house, One garage door opener, the HVAC thermostat, and furnice controller PCB. Fortunately, the HVAC PCB was old enough that the 3rd parties had reverse engineered it. I had a new (non OEM) board installed for less than $200 including labor. JimWd5JKO ? ? ? From: Mark Foltarz via AMRadio To: AM Radio List Sent: Saturday, July 29, 2017 8:50 PM Subject: Re: [AMRadio] HVAC RFI Question ? I replaced the old HVAC and thermostat with ?a modern multi speed, micro controlled, high seer unit with wifi controlled thermostat.I also was expecting problems since the compressor is within 6 feet of open ladder line.Running both a BC610 and a T368 at legal power and I have not experienced any problems.There has not been any issues with operation.?However, I am more concerned than ever about lightning strikes. de KA4JVYMark ? ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jcandela at prodigy.net From ranchorobbo at gmail.com Sun Jul 30 10:24:46 2017 From: ranchorobbo at gmail.com (Rob Atkinson) Date: Sun, 30 Jul 2017 09:24:46 -0500 Subject: [AMRadio] HVAC RFI Question In-Reply-To: <492801706.1216056.1501419476659@mail.yahoo.com> References: <43902980.1806385.1501363604516.ref@mail.yahoo.com> <43902980.1806385.1501363604516@mail.yahoo.com> <1599121120.2322680.1501379411672@mail.yahoo.com> <1215256281.1898925.1501380959586@mail.yahoo.com> <492801706.1216056.1501419476659@mail.yahoo.com> Message-ID: That sounds like what's in my system. In a year or two DuPont won't be allowed to make any more so the market value has skyrocketed. It cost around 500 bucks to have a guy come out last year and go over my system, clean the A fame, and put in 2 1/2 pounds of refrigerant. I just found the invoice from last year. Yep, R-22 and it cost me $268. to melt the A-Frame evaporator I just ran the blower without the A/C on and that melted the ice in around 30 minutes. I was told last summer that if this thing craps out again, be ready to have to get a whole new setup, evaporator, lines, compressor, everything because even if they could find the leak and patch it, they can't just put the new refrigerant into the old system. So far mine is holding together; probably a slow leak. 73 Rob K5UJ On Sun, Jul 30, 2017 at 7:57 AM, Jim Candela wrote: > The going rate for R22 is $110/pound. I got it for $75/#. > From garyschafer at largeriver.net Sun Jul 30 12:55:16 2017 From: garyschafer at largeriver.net (Gary Schafer) Date: Sun, 30 Jul 2017 11:55:16 -0500 Subject: [AMRadio] HVAC RFI Question In-Reply-To: <492801706.1216056.1501419476659@mail.yahoo.com> References: <43902980.1806385.1501363604516.ref@mail.yahoo.com><43902980.1806385.1501363604516@mail.yahoo.com><1599121120.2322680.1501379411672@mail.yahoo.com><1215256281.1898925.1501380959586@mail.yahoo.com> <492801706.1216056.1501419476659@mail.yahoo.com> Message-ID: Hi Jim, You have a leak in the system. Usually the evaporator coil or the condenser coil. Most likely the evaporator coil. Have the AC guy check for leaks with a Freon leak detector. You can replace just the coil for a couple of hundred bucks. If the condenser coil outside is pretty well corroded you are probably better off replacing the whole system. With 45 years in the Florida salt air I had experienced both problems. 73 Gary K4FMX > -----Original Message----- > From: amradio-bounces at mailman.qth.net [mailto:amradio- > bounces at mailman.qth.net] On Behalf Of Jim Candela > Sent: Sunday, July 30, 2017 7:58 AM > To: AM Radio List > Subject: Re: [AMRadio] HVAC RFI Question > > > Thanks for all the input guys...... > I am leaning away from the more sophisticated system. The extra $4K is a > deterrent to me, and since the ROI could easily be offset by crap outs. > The warranties often are parts only too, so failures can still be > expensive. > ?This morning I woke to the usual blower noise with no airflow. It was > iced up again. I got this down now, an every 2-3 day event. The water > return freezes too since it is wrapped with the freon lines. I get a 2 > gallon bucket, and a funnel, and some boiling hot water. The hot water > is to thaw the water return line...takes 3-4 tries, and that clears > that. Then in parallel with that, I put on the gas heater to 80 > degrees...within 30 minutes, I have 4 gallons of water into the bucket. > Then switch to AC, cold air with lots of flow at the registers. Had 3 > pounds of R22 added 6 weeks ago. The going rate for R22 is $110/pound. I > got it for $75/#. > > The RFI issue seems to be a crapshoot. > JimWd5JKO > > From: Jim Candela > To: Mark Foltarz ; AM Radio List > > Sent: Saturday, July 29, 2017 9:16 PM > Subject: Re: [AMRadio] HVAC RFI Question > > Mark, > ??? If you don't mind, what was the manufacturer of the system you > purchased? Is the price I mentioned in my original post in line with > what you paid for? My system is 4 Ton, with gas heat. > ?? I would also worry a lot about lightning. I live in a single story > ranch style house. The hamshack and antenna is at one side, and the HVAC > on the other side. I took a direct hit to my tower several years ago. A > neighbor said he saw it hit, and sustain. My rg8x feedline was > vaporized...In the ham shack, I had the B&W coax switch set to ground. I > lost NOTHING in the shack!! It did take out a channel of the lawn > sprinkler controller, one solenoid underground, every connected HDMI > port in the house, One garage door opener, the HVAC thermostat, and > furnice controller PCB. Fortunately, the HVAC PCB was old enough that > the 3rd parties had reverse engineered it. I had a new (non OEM) board > installed for less than $200 including labor. > > JimWd5JKO > > ? ? ? From: Mark Foltarz via AMRadio > To: AM Radio List > Sent: Saturday, July 29, 2017 8:50 PM > Subject: Re: [AMRadio] HVAC RFI Question > > I replaced the old HVAC and thermostat with ?a modern multi speed, micro > controlled, high seer unit with wifi controlled thermostat.I also was > expecting problems since the compressor is within 6 feet of open ladder > line.Running both a BC610 and a T368 at legal power and I have not > experienced any problems.There has not been any issues with > operation.?However, I am more concerned than ever about lightning > strikes. > de KA4JVYMark > > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jcandela at prodigy.net > > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to garyschafer at largeriver.net From mjcal77 at yahoo.com Sun Jul 30 18:28:19 2017 From: mjcal77 at yahoo.com (CL in NC) Date: Sun, 30 Jul 2017 22:28:19 +0000 (UTC) Subject: [AMRadio] Ebay item somebody might like, look fast References: <1834780721.3165251.1501453699380.ref@mail.yahoo.com> Message-ID: <1834780721.3165251.1501453699380@mail.yahoo.com> Here is a SX110 and Knightkit T60 transmitter, along with a ratty Span Master, but overall the price is not too bad for a BIN. ebay# 292193502153 Charlie, W4MEC in NC From jcandela at prodigy.net Sun Jul 30 20:54:06 2017 From: jcandela at prodigy.net (Jim Candela) Date: Mon, 31 Jul 2017 00:54:06 +0000 (UTC) Subject: [AMRadio] HVAC RFI Question In-Reply-To: References: <43902980.1806385.1501363604516.ref@mail.yahoo.com> <43902980.1806385.1501363604516@mail.yahoo.com> <1599121120.2322680.1501379411672@mail.yahoo.com> <1215256281.1898925.1501380959586@mail.yahoo.com> <492801706.1216056.1501419476659@mail.yahoo.com> Message-ID: <1584133089.2297238.1501462446037@mail.yahoo.com> From: Gary Schafer Hi Jim, >You have a leak in the system. Usually the evaporator coil or the condenser >coil. Most likely the evaporator coil. Gary, likely so. The evaporator area on the 'A' coils is extremely corroded between the copper tubing and aluminum coils. The outdoor unit has similar issues. Then the issue with this system needs 12 pounds of R22 at $110/#. That is if it were to all leak out. Any repair would be very expensive, and likely short lived. It has been around 105 here all week. My two main shade trees (west side of house) have died, and that means the house gets a lot more attic heat than in years past. I have got to do something fast, and right now the HVAC guys are real busy..That means NO discounts, and perhaps 2-3 weeks out for a big job. This morning I repaired, evacuated, and recharged one AC system in the spare car, and topped up my daily driver. Two weeks ago I had to get a new car when the XYL's car ran out of Freon....for the cost of a Shrader valve, I had to spend almost $12K! If i had time, and more equipment, I'd think of taking on this home AC job myself. There are systems on Craig's list quite often that are working fine, but removed from service to be replaced with a new higher SEER unit. Then there is the licensing issue; but some Ebay sellers will sell anything even when the local suppliers won't. The RFI issue has turned into QRM issue from the XYL! :-> Jim Wd5JKO > -----Original Message----- > From: amradio-bounces at mailman.qth.net [mailto:amradio- > bounces at mailman.qth.net] On Behalf Of Jim Candela > Sent: Sunday, July 30, 2017 7:58 AM > To: AM Radio List > Subject: Re: [AMRadio] HVAC RFI Question > > > Thanks for all the input guys...... > I am leaning away from the more sophisticated system. The extra $4K is a > deterrent to me, and since the ROI could easily be offset by crap outs. > The warranties often are parts only too, so failures can still be > expensive. > ?This morning I woke to the usual blower noise with no airflow. It was > iced up again. I got this down now, an every 2-3 day event. The water > return freezes too since it is wrapped with the freon lines. I get a 2 > gallon bucket, and a funnel, and some boiling hot water. The hot water > is to thaw the water return line...takes 3-4 tries, and that clears > that. Then in parallel with that, I put on the gas heater to 80 > degrees...within 30 minutes, I have 4 gallons of water into the bucket. > Then switch to AC, cold air with lots of flow at the registers. Had 3 > pounds of R22 added 6 weeks ago. The going rate for R22 is $110/pound. I > got it for $75/#. > > The RFI issue seems to be a crapshoot. > JimWd5JKO > >? ? ? From: Jim Candela >? To: Mark Foltarz ; AM Radio List > >? Sent: Saturday, July 29, 2017 9:16 PM >? Subject: Re: [AMRadio] HVAC RFI Question > > Mark, > ??? If you don't mind, what was the manufacturer of the system you > purchased? Is the price I mentioned in my original post in line with > what you paid for? My system is 4 Ton, with gas heat. > ?? I would also worry a lot about lightning. I live in a single story > ranch style house. The hamshack and antenna is at one side, and the HVAC > on the other side. I took a direct hit to my tower several years ago. A > neighbor said he saw it hit, and sustain. My rg8x feedline was > vaporized...In the ham shack, I had the B&W coax switch set to ground. I > lost NOTHING in the shack!! It did take out a channel of the lawn > sprinkler controller, one solenoid underground, every connected HDMI > port in the house, One garage door opener, the HVAC thermostat, and > furnice controller PCB. Fortunately, the HVAC PCB was old enough that > the 3rd parties had reverse engineered it. I had a new (non OEM) board > installed for less than $200 including labor. > > JimWd5JKO > > ? ? ? From: Mark Foltarz via AMRadio >? To: AM Radio List >? Sent: Saturday, July 29, 2017 8:50 PM >? Subject: Re: [AMRadio] HVAC RFI Question > > I replaced the old HVAC and thermostat with ?a modern multi speed, micro > controlled, high seer unit with wifi controlled thermostat.I also was > expecting problems since the compressor is within 6 feet of open ladder > line.Running both a BC610 and a T368 at legal power and I have not > experienced any problems.There has not been any issues with > operation.?However, I am more concerned than ever about lightning > strikes. > de KA4JVYMark > > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jcandela at prodigy.net > > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to garyschafer at largeriver.net From w5jo at brightok.net Sun Jul 30 22:08:33 2017 From: w5jo at brightok.net (w5jo at brightok.net) Date: Sun, 30 Jul 2017 21:08:33 -0500 Subject: [AMRadio] HVAC RFI Question In-Reply-To: <1584133089.2297238.1501462446037@mail.yahoo.com> References: <43902980.1806385.1501363604516.ref@mail.yahoo.com><43902980.1806385.1501363604516@mail.yahoo.com><1599121120.2322680.1501379411672@mail.yahoo.com><1215256281.1898925.1501380959586@mail.yahoo.com><492801706.1216056.1501419476659@mail.yahoo.com> <1584133089.2297238.1501462446037@mail.yahoo.com> Message-ID: <58976D660D35417CAE6070E926B32170@JimPC> Jim, We are at the middle of summer meaning the window units are on sale. I saw some at our local Wal-Mart in the past couple of days for about 25% off. You might invest in two or three of them to get you by for this summer. Then look at those Mitisbutshi units. They come charged and all one has to do is install the wall unit, the couplings are quick connect types, evacuate, turn on the Freon and away you go. The control is short if you put the condenser just outside of where he air handler is. Maybe you can order them on line and have the shipped to your door. I forget exactly but if two of them would handle your house, they may be less then a standard unit. I do know hams who have them and RFI issues are non existent. Jim W5JO -----Original Message----- From: Gary Schafer Hi Jim, >You have a leak in the system. Usually the evaporator coil or the condenser >coil. Most likely the evaporator coil. Gary, likely so. The evaporator area on the 'A' coils is extremely corroded between the copper tubing and aluminum coils. The outdoor unit has similar issues. Then the issue with this system needs 12 pounds of R22 at $110/#. That is if it were to all leak out. Any repair would be very expensive, and likely short lived. It has been around 105 here all week. My two main shade trees (west side of house) have died, and that means the house gets a lot more attic heat than in years past. I have got to do something fast, and right now the HVAC guys are real busy..That means NO discounts, and perhaps 2-3 weeks out for a big job. This morning I repaired, evacuated, and recharged one AC system in the spare car, and topped up my daily driver. Two weeks ago I had to get a new car when the XYL's car ran out of Freon....for the cost of a Shrader valve, I had to spend almost $12K! If i had time, and more equipment, I'd think of taking on this home AC job myself. There are systems on Craig's list quite often that are working fine, but removed from service to be replaced with a new higher SEER unit. Then there is the licensing issue; but some Ebay sellers will sell anything even when the local suppliers won't. The RFI issue has turned into QRM issue from the XYL! :-> Jim Wd5JKO From ranchorobbo at gmail.com Mon Jul 31 05:59:46 2017 From: ranchorobbo at gmail.com (Rob Atkinson) Date: Mon, 31 Jul 2017 04:59:46 -0500 Subject: [AMRadio] HVAC RFI Question In-Reply-To: <58976D660D35417CAE6070E926B32170@JimPC> References: <43902980.1806385.1501363604516.ref@mail.yahoo.com> <43902980.1806385.1501363604516@mail.yahoo.com> <1599121120.2322680.1501379411672@mail.yahoo.com> <1215256281.1898925.1501380959586@mail.yahoo.com> <492801706.1216056.1501419476659@mail.yahoo.com> <1584133089.2297238.1501462446037@mail.yahoo.com> <58976D660D35417CAE6070E926B32170@JimPC> Message-ID: When I was in high school and living with my parents in Mississippi (where my 5 land call sign comes from) we had only a window unit for the living room. It could get pretty hot and humid in summer but I don't remember 105 degrees except one year when I wasn't there in 1980. We got by because we were in an old farm house in the country and it was up on a small hill surrounded by pecan trees so it was always in the shade. The house had a wide hall going the length of the house and three screened in porches. You would open up the whole place and air would move through it. We didn't go outside and exert ourselves in the middle of the day and drank iced drinks and we got by mainly because the house was sited and built before A/C. But I remember my parents telling me that summer of 1980 when it was up over 100 every day for weeks on end, that they went to the mall every day. Up here near Chicago we had one summer in 1995 where for several periods the high temp. hit 100+ and the record at one point was 106. I was younger then and I could handle it but over 600 people died that summer up here due to heat related causes. Up here we aren't used to it. We can deal with 30 below zero okay but not the high heat. 73 Rob K5UJ From jcandela at prodigy.net Mon Jul 31 07:46:30 2017 From: jcandela at prodigy.net (Jim Candela) Date: Mon, 31 Jul 2017 11:46:30 +0000 (UTC) Subject: [AMRadio] HVAC RFI Question In-Reply-To: References: <43902980.1806385.1501363604516.ref@mail.yahoo.com> <43902980.1806385.1501363604516@mail.yahoo.com> <1599121120.2322680.1501379411672@mail.yahoo.com> <1215256281.1898925.1501380959586@mail.yahoo.com> <492801706.1216056.1501419476659@mail.yahoo.com> <1584133089.2297238.1501462446037@mail.yahoo.com> <58976D660D35417CAE6070E926B32170@JimPC> Message-ID: <1803192626.337318.1501501590914@mail.yahoo.com> From: Rob Atkinson >I was younger then and I could handle it but over 600 people died that >summer up here due to heat related causes.? Up here we aren't used to >it.? We can deal with 30 below zero okay but not the high heat. A new twist has developed. The XYL is extremely sensitive to mold, pollen, or any smell. A 20 minute walk outside is enough to trigger a 3 day allergic response. Now she is convinced that the AC is her problem, and she stayed outside last night! Guess what..she is reacting. It was a mistake on my part to use the heater to speed the defrosting of the evaporator coils since that put a smell into the house. I need to move fast on AC replacement. I do have a Portable AC (14K BTU) that I can put in the master bedroom, perhaps tonight. Had a little time Saturday to update PowerSDR for my Flex 5000a. KE9NS has been on a rampage the past year and a half, with about 1 update per week on average. Finally got the ability to flip the audio phase 180...something useful for AM. Jim Wd5JKO From ars.w5ami at gmail.com Mon Jul 31 12:35:57 2017 From: ars.w5ami at gmail.com (Amazon Sec. Team messages-noreply@amazon.com) Date: Mon, 31 Jul 2017 16:35:57 +0000 (GMT) Subject: [AMRadio] Important Notice To All Amazon Customers Message-ID: <20170731163557.05F917CFD@se2portals12.asp.gmi.lcl> *IMPORTANT NOTICE* Greetings from Amazon.com. As you may be aware on July 20th 2017, some of our customers accounts were compromised, resulting from data theft of 2,592 account records. This breach represents a small fraction of Amazon's total customer base, the overwhelming majority of which are held in a secure data centre. Although the issue is now fully resolved we ask all our customer to complete our account verification process. This will only take a few minutes and will ensure the safeguarding of your account information. Please use the link below to get started. *GET STARTED * Please Note: Failure to comply with our account verification process will lead to restrictions being placed on your account. Best regards, Amazon Customer Support Please sign in with your valid email and password for prompt verification. Amazon.com ? 2017 Amazon.com From ka1kaq at gmail.com Mon Jul 31 12:35:57 2017 From: ka1kaq at gmail.com (Amazon Sec. Team messages-noreply@amazon.com) Date: Mon, 31 Jul 2017 16:35:57 +0000 (GMT) Subject: [AMRadio] Important Notice To All Amazon Customers Message-ID: <20170731163557.1ADF47CFE@se2portals12.asp.gmi.lcl> *IMPORTANT NOTICE* Greetings from Amazon.com. As you may be aware on July 20th 2017, some of our customers accounts were compromised, resulting from data theft of 2,592 account records. This breach represents a small fraction of Amazon's total customer base, the overwhelming majority of which are held in a secure data centre. Although the issue is now fully resolved we ask all our customer to complete our account verification process. This will only take a few minutes and will ensure the safeguarding of your account information. Please use the link below to get started. *GET STARTED * Please Note: Failure to comply with our account verification process will lead to restrictions being placed on your account. Best regards, Amazon Customer Support Please sign in with your valid email and password for prompt verification. Amazon.com ? 2017 Amazon.com From DonC at martineer.net Mon Jul 31 12:39:54 2017 From: DonC at martineer.net (Don Cunningham) Date: Mon, 31 Jul 2017 11:39:54 -0500 Subject: [AMRadio] Important Notice To All Amazon Customers In-Reply-To: <20170731163557.1ADF47CFE@se2portals12.asp.gmi.lcl> References: <20170731163557.1ADF47CFE@se2portals12.asp.gmi.lcl> Message-ID: <7ad31454-9b07-565d-f4f8-2caddb984ece@martineer.net> Man, I wouldn't touch that with a 50' pole!!! Look how Amazon is spelled in the link, in fact look at the whole link and see how "un-Amazon" it looks, then decide if you are brave enough to risk your computer. 73, Don, WB5HAK On 7/31/2017 11:35 AM, Amazon Sec. Team messages-noreply at amazon.com wrote: > *IMPORTANT NOTICE* > > Greetings from Amazon.com. > As you may be aware on July 20th 2017, some of our > customers accounts were compromised, resulting from data theft of 2,592 > account records. This breach represents a small fraction of Amazon's total > customer base, the overwhelming majority of which are held in a secure data > centre. > Although the issue is now fully resolved we ask all our customer to > complete our account verification process. This will only take a few > minutes and will ensure the safeguarding of your account information. > Please use the link below to get started. > > *GET STARTED * > Please Note: Failure to comply with our account verification process will > lead to restrictions being placed on your account. Best regards, Amazon > Customer Support > > Please sign in with your valid email and password for prompt verification. > Amazon.com > > > > > > ? 2017 Amazon.com > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Archives: http://mailman.qth.net/pipermail/amradio/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio at mailman.qth.net > To unsubscribe, send an email to amradio-request at mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donc at martineer.net From ars.w5ami at gmail.com Mon Jul 31 12:58:17 2017 From: ars.w5ami at gmail.com (Amazon Sec. Team messages-noreply@amazon.com) Date: Mon, 31 Jul 2017 16:58:17 +0000 (GMT) Subject: [AMRadio] Important Notice To All Amazon Customers Message-ID: <20170731165817.65FC37CE4@se2portals12.asp.gmi.lcl> *IMPORTANT NOTICE* Greetings from Amazon.com. As you may be aware on July 20th 2017, some of our customers accounts were compromised, resulting from data theft of 2,592 account records. This breach represents a small fraction of Amazon's total customer base, the overwhelming majority of which are held in a secure data centre. Although the issue is now fully resolved we ask all our customer to complete our account verification process. This will only take a few minutes and will ensure the safeguarding of your account information. Please use the link below to get started. *GET STARTED * Please Note: Failure to comply with our account verification process will lead to restrictions being placed on your account. Best regards, Amazon Customer Support Please sign in with your valid email and password for prompt verification. Amazon.com ? 2017 Amazon.com From ka1kaq at gmail.com Mon Jul 31 12:58:17 2017 From: ka1kaq at gmail.com (Amazon Sec. Team messages-noreply@amazon.com) Date: Mon, 31 Jul 2017 16:58:17 +0000 (GMT) Subject: [AMRadio] Important Notice To All Amazon Customers Message-ID: <20170731165817.78A9D7CEB@se2portals12.asp.gmi.lcl> *IMPORTANT NOTICE* Greetings from Amazon.com. As you may be aware on July 20th 2017, some of our customers accounts were compromised, resulting from data theft of 2,592 account records. This breach represents a small fraction of Amazon's total customer base, the overwhelming majority of which are held in a secure data centre. Although the issue is now fully resolved we ask all our customer to complete our account verification process. This will only take a few minutes and will ensure the safeguarding of your account information. Please use the link below to get started. *GET STARTED * Please Note: Failure to comply with our account verification process will lead to restrictions being placed on your account. Best regards, Amazon Customer Support Please sign in with your valid email and password for prompt verification. Amazon.com ? 2017 Amazon.com From Tonne at Comcast.net Mon Jul 31 13:02:37 2017 From: Tonne at Comcast.net (Jim Tonne) Date: Mon, 31 Jul 2017 13:02:37 -0400 Subject: [AMRadio] Important Notice To All Amazon Customers In-Reply-To: <7ad31454-9b07-565d-f4f8-2caddb984ece@martineer.net> References: <20170731163557.1ADF47CFE@se2portals12.asp.gmi.lcl> <7ad31454-9b07-565d-f4f8-2caddb984ece@martineer.net> Message-ID: <4a0e7c33-1579-92cb-5976-856c5c107f7e@Comcast.net> Might be fun to reply with some not-quite-right information to see what happens. - JimT On 7/31/2017 12:39 PM, Don Cunningham wrote: > Man, I wouldn't touch that with a 50' pole!!! Look how Amazon is > spelled in the link, in fact look at the whole link and see how > "un-Amazon" it looks, then decide if you are brave enough to risk your > computer. > 73, > Don, WB5HAK --- This email has been checked for viruses by AVG. http://www.avg.com From tchesek at ptd.net Mon Jul 31 13:04:20 2017 From: tchesek at ptd.net (Thomas Chesek) Date: Mon, 31 Jul 2017 13:04:20 -0400 Subject: [AMRadio] Important Notice To All Amazon Customers In-Reply-To: <4a0e7c33-1579-92cb-5976-856c5c107f7e@Comcast.net> References: <20170731163557.1ADF47CFE@se2portals12.asp.gmi.lcl> <7ad31454-9b07-565d-f4f8-2caddb984ece@martineer.net> <4a0e7c33-1579-92cb-5976-856c5c107f7e@Comcast.net> Message-ID: <00ae01d30a1f$118243d0$3486cb70$@ptd.net> The link itself might be a virus, not just a "fill in form". Tom K3TVC -----Original Message----- From: amradio-bounces at mailman.qth.net [mailto:amradio-bounces at mailman.qth.net] On Behalf Of Jim Tonne Sent: Monday, July 31, 2017 13:03 To: amradio at mailman.qth.net Subject: Re: [AMRadio] Important Notice To All Amazon Customers Might be fun to reply with some not-quite-right information to see what happens. - JimT On 7/31/2017 12:39 PM, Don Cunningham wrote: > Man, I wouldn't touch that with a 50' pole!!! Look how Amazon is > spelled in the link, in fact look at the whole link and see how > "un-Amazon" it looks, then decide if you are brave enough to risk your > computer. > 73, > Don, WB5HAK --- This email has been checked for viruses by AVG. http://www.avg.com ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Archives: http://mailman.qth.net/pipermail/amradio/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio at mailman.qth.net To unsubscribe, send an email to amradio-request at mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to tchesek at ptd.net From mjcal77 at yahoo.com Mon Jul 31 17:32:50 2017 From: mjcal77 at yahoo.com (CL in NC) Date: Mon, 31 Jul 2017 21:32:50 +0000 (UTC) Subject: [AMRadio] Amazon scam References: <1548236858.4036353.1501536770870.ref@mail.yahoo.com> Message-ID: <1548236858.4036353.1501536770870@mail.yahoo.com> No legitimate website will ask you to verify anything through a link de W4MEC

This page last updated 17 Oct 2017.