From holden7471 at msn.com Fri Sep 1 21:13:02 2017 From: holden7471 at msn.com (howard holden) Date: Sat, 2 Sep 2017 01:13:02 +0000 Subject: [Hallicrafters] Fall 2017 CW Classic Exchange Message-ID: The CW CX will run from 1300 UTC September 10 to 0800 UTC September 11, 2017 (9 AM Eastern Time on Sunday to 3 AM Eastern Time Monday) AND from 1300 UTC September 12 to 0800 UTC September 13, 2017 (9 AM Eastern Time on Tuesday to 3 AM Eastern Time Wednesday) Suggested Frequencies -- plus/minus QRM Listen up and down 5 to 10 Kc for crystal controlled stations CW 1.810 mc. 3.545 mc. 7.045 mc. 14.045 mc. 21.045 mc. 28.045 mc. 50.100 mc. 144.100 mc. The CX is a no-pressure contest celebrating the older commercial and homebrew equipment that was the pride and joy of ham shacks many decades ago. The object is to encourage restoration, operation and enjoyment of this older Classic equipment. However, you need not operate a Classic rig to participate in the CX. YOU MAY USE ANY RIG in the contest although new gear is a distinct scoring disadvantage. You can still work the "great ones" with modern equipment. There are new Bonus Scores for using the same model rigs as your Novice station and for using an RME receiver and for using a WRL transmitter. Awards will be given in two classes: 1. Three or fewer receiver-transmitter pairs 2. Four or more receiver-transmitter pairs. Send logs, comments, anecdotes, pictures, etc. to J.D. "Mac" Mac Aulay, WQ8U at wq8u at arrl.net Full details at: http://classicexchange.org/sep17/sep17ann.html Questions? email me! CU on the air for CX! 73, Howie WB2AWQ/7 From rhodesrj at gmail.com Fri Sep 1 22:28:51 2017 From: rhodesrj at gmail.com (RJ Rhodes) Date: Fri, 1 Sep 2017 19:28:51 -0700 Subject: [Hallicrafters] need info on Hallicrafters SX-116 - schematic, manual Message-ID: Just acquired an unmodified Hallicrafters SX-116 - USAF designated Model Number "SWE" Found very little about this - Single Side Band Strip Receiver- Any help would be much appreciated Thanks RJ From L at w0vt.us Tue Sep 5 01:11:11 2017 From: L at w0vt.us (Lee Bahr) Date: Tue, 5 Sep 2017 00:11:11 -0500 Subject: [Hallicrafters] SX-117 and HT44 Large VFO Knob In-Reply-To: <1639b5fc-1236-1244-f770-176b7168a50f@w0vt.us> References: <1639b5fc-1236-1244-f770-176b7168a50f@w0vt.us> Message-ID: <502466da-308c-160b-53bb-0f660e377d84@w0vt.us> I have a broken VFO knob for my SX-117 receiver.? It appears I'll never find a used replacement.? I'm thinking of having some made. Not sure if they will be cast or machined metal. First off, does anyone sell replacement spun aluminum center discs for these knobs? Second is there anyone on here interested in obtaining one if I have them made?? I say interested as right now I have no further info to pass on. Right now I don't know the cost or if they will be molded plastic or machined metal.? Whatever I do, they will look good or I won't do it. It sure would help if the spun aluminum discs are available. ? I'm sure the spinner handle could be machined. These radios are not cheap and without a nice knob, my radio as is is bothering me big time.? I don't expect this to be a $10 knob, but if I have a few made up, I will most likely be able to get a better price for all of us.? Let me know if you are interested.? It will give me a feel for the demand.? As you all know, these knobs are for the most part unobtainable.? I'll then keep all informed as to my progress as the project moves forward. This is going to be a one time deal.? I don't plan to go into business selling them.? Now maybe your only chance to get a decent knob for your receiver or transmitter or transceiver. Write me privately if you want further details as they happen. Lee, w0vt Lee at w0vt.us --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From wa6aaj at gmail.com Thu Sep 7 18:33:05 2017 From: wa6aaj at gmail.com (Mike Kennedy) Date: Thu, 7 Sep 2017 15:33:05 -0700 Subject: [Hallicrafters] SX88 Dial belts In-Reply-To: References: Message-ID: Hello group Anybody remember who or what company reproduced the dial belts for the SX 88? I guess it was about 20 years ago??? Mike From wa1kbq at aol.com Fri Sep 8 09:30:56 2017 From: wa1kbq at aol.com (Greg Gore) Date: Fri, 8 Sep 2017 09:30:56 -0400 Subject: [Hallicrafters] SX88 Dial belts In-Reply-To: Message-ID: <15e61afae07-c0c-50826@webjas-vae022.srv.aolmail.net> I can answer your question. Jim Jorgensen; K9RJ (now SK) had a small production run of SX-88 bandswitch belts (around 100) made from the original molds about 20 years ago or so in conjunction with a friend who was also an engineer at the Dayco Belt Company in Dayton, Ohio. Jim was selling these repro belts quite regularly on-line and at the Dayton Hamvention for about $25 each I think it was and managed to sell most all of them over the years but had held back a few. I spoke with Jim about his belt project many years ago at a Dayton Hamvention and he said with less than 100 known surviving SX-88s that 100 belts seemed to be a reasonable number to reproduce. About 10 years ago or so I learned Jim may have sold the small remaining lot to another hobbyist who reportedly was Chuck Groome; K5CEG of Paris, TX. It was also reported around that time that Chuck Groome was getting $500 for "new" SX-88 belts. K9RJ reproduction belts do occasionally appear on eBay and I was fortunate to get another one there about ten years ago for around $130. If you're interested in pursuing a reproduction belt or looking for something which might be a suitable substitute I just measured an original SX-88 bandswitch belt. It is possible the length has changed slightly over the years because the tooth pitch is not an even number. Carefully measuring along the outside surface of the belt I get 27.5" The belt width is 1/8" (.125) and the tooth count is 112. It looks like roughly 4 teeth per inch. Regards, Greg Gore; WA1KBQ -----Original Message----- From: Mike Kennedy To: hallicrafters Sent: Thu, Sep 7, 2017 6:33 pm Subject: [Hallicrafters] SX88 Dial belts Hello group Anybody remember who or what company reproduced the dial belts for the SX 88? I guess it was about 20 years ago??? Mike ______________________________________________________________ Hallicrafters mailing list Home: http://mailman.qth.net/mailman/listinfo/hallicrafters Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Hallicrafters at mailman.qth.net List Administrator: Duane Fischer, W8DBF ** For Assistance: dfischer at usol.com ** This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html From gharmon at idworld.net Fri Sep 8 09:50:29 2017 From: gharmon at idworld.net (Gary H. Harmon, Jr.) Date: Fri, 8 Sep 2017 08:50:29 -0500 Subject: [Hallicrafters] SX88 Dial belts In-Reply-To: <15e61afae07-c0c-50826@webjas-vae022.srv.aolmail.net> References: <15e61afae07-c0c-50826@webjas-vae022.srv.aolmail.net> Message-ID: Eleven years ago I had a new belt. I loaned it to someone who was going to use it to make a run of belts. He turned the project over to someone else who decided it was going to be too expensive. 73, Gary H. Harmon, Jr. - K5JWK - HAM Radio and ATARI Archaeologist 6003 Archwood San Antonio, TX 78239-1504 (210) 657-1549 (210) 884-6926 (210) 657-1549 gharmon at idworld.net "Retirement = Every day is a Saturday except Sunday" http://www.grissomroadcoc.org -----Original Message----- From: hallicrafters-bounces at mailman.qth.net [mailto:hallicrafters-bounces at mailman.qth.net] On Behalf Of Greg Gore via Hallicrafters Sent: Friday, September 08, 2017 8:31 AM To: wa6aaj at gmail.com; hallicrafters at mailman.qth.net Subject: Re: [Hallicrafters] SX88 Dial belts I can answer your question. Jim Jorgensen; K9RJ (now SK) had a small production run of SX-88 bandswitch belts (around 100) made from the original molds about 20 years ago or so in conjunction with a friend who was also an engineer at the Dayco Belt Company in Dayton, Ohio. Jim was selling these repro belts quite regularly on-line and at the Dayton Hamvention for about $25 each I think it was and managed to sell most all of them over the years but had held back a few. I spoke with Jim about his belt project many years ago at a Dayton Hamvention and he said with less than 100 known surviving SX-88s that 100 belts seemed to be a reasonable number to reproduce. About 10 years ago or so I learned Jim may have sold the small remaining lot to another hobbyist who reportedly was Chuck Groome; K5CEG of Paris, TX. It was also reported around that time that Chuck Groome was getting $500 for "new" SX-88 belts. K9RJ reproduction belts do occasionally appear on eBay and I was fortunate to get another one there about ten years ago for around $130. If you're interested in pursuing a reproduction belt or looking for something which might be a suitable substitute I just measured an original SX-88 bandswitch belt. It is possible the length has changed slightly over the years because the tooth pitch is not an even number. Carefully measuring along the outside surface of the belt I get 27.5" The belt width is 1/8" (.125) and the tooth count is 112. It looks like roughly 4 teeth per inch. Regards, Greg Gore; WA1KBQ -----Original Message----- From: Mike Kennedy To: hallicrafters Sent: Thu, Sep 7, 2017 6:33 pm Subject: [Hallicrafters] SX88 Dial belts Hello group Anybody remember who or what company reproduced the dial belts for the SX 88? I guess it was about 20 years ago??? Mike ______________________________________________________________ Hallicrafters mailing list Home: http://mailman.qth.net/mailman/listinfo/hallicrafters Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Hallicrafters at mailman.qth.net List Administrator: Duane Fischer, W8DBF ** For Assistance: dfischer at usol.com ** This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Hallicrafters mailing list Home: http://mailman.qth.net/mailman/listinfo/hallicrafters Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Hallicrafters at mailman.qth.net List Administrator: Duane Fischer, W8DBF ** For Assistance: dfischer at usol.com ** This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html From ranickel at comcast.net Fri Sep 8 11:47:31 2017 From: ranickel at comcast.net (Robert Nickels) Date: Fri, 8 Sep 2017 10:47:31 -0500 Subject: [Hallicrafters] SX88 Dial belts In-Reply-To: <15e61afae07-c0c-50826@webjas-vae022.srv.aolmail.net> References: <15e61afae07-c0c-50826@webjas-vae022.srv.aolmail.net> Message-ID: <68f77312-cf3e-d5eb-ff5b-d758f8a0138e@comcast.net> On 9/8/2017 8:30 AM, Greg Gore via Hallicrafters wrote: > The belt width is 1/8" (.125) and the tooth count is 112. It looks like roughly 4 teeth per inch. I can confirm what Greg said, and add a bit more from my own experience.?? The belt from my SX-88 had a patent number on it and I used that to research the successor company and potential sources, which ultimately led to an application engineer at Stock Drive Products (www.sdp-si.com) which is a large manufacture of timing belts today.???? I can't find my notes from that exchange but the bottom line was that this patent was for the original "toothed" timing belt, and having been designed by a US inventor around the middle of the 20th century,? was made to imperial measurements, with 1/8" teeth and spaces, as can be seen here: http://i.imgur.com/Xdq064p.png My original belt measurements were:? 27 1/4" long, .165" wide, 4 teeth per inch. I was told that as timing belts became popular and more suppliers started making them, the industry standardized on diametral pitch (D.P.) measurements, which is the number of teeth on a gear per inch of its pitch diameter.? As a result, there are no products available today that match the old pitch of the SX-88 belt and it is extremely unlikely that any? such tooling still exists.??? Thus ended my search but if anyone has that original patent number, I'd appreciate having it. The design of the dial pulleys would make it difficult to replace them with ones that could accommodate modern timing belts. ? I did look at bead chain as a possible replacement since a "4 beads per inch" type might fit the pulleys and the precision and torque required to turn the SX-88 band indicator is minimal, but I have not tried it. 73, Bob W9RAN From k5pgw at yahoo.com Sun Sep 10 21:59:07 2017 From: k5pgw at yahoo.com (John King) Date: Mon, 11 Sep 2017 01:59:07 +0000 (UTC) Subject: [Hallicrafters] knobs for Hallicrafters SX 100 References: <1341333853.6584507.1505095147219.ref@mail.yahoo.com> Message-ID: <1341333853.6584507.1505095147219@mail.yahoo.com> I am looking for one or more knobs for my SX 100A. I recapped it today and when replacing the knobs, one of the cracked into. I need the knob with "Normal, Treble. Upper, Lower and Power off" on the skirt. Before completing replacement, I may need other knobs. At the present, only the above described know is split into. If you have this knob to spare as well as others of the set, and willing to sell, please respond. Pleas advise and I will purchase them. Thanks and 73, John, K5PGW From k5pgw at yahoo.com Mon Sep 11 15:21:49 2017 From: k5pgw at yahoo.com (John King) Date: Mon, 11 Sep 2017 19:21:49 +0000 (UTC) Subject: [Hallicrafters] Reviving nice SX 100 References: <304526337.33313.1505157709625.ref@mail.yahoo.com> Message-ID: <304526337.33313.1505157709625@mail.yahoo.com> I recapped my SX 100 and it is working as best I can tell with questionable band performance due to propagation. First thing I noticed was a non operative BFO. To make sure the problem is not the tube, I removed the 6SC7 tube (audio amplifier and BFO) tube from my SX 96 and substituted it for the one in the SX 100. The BFO still did not work. I am waiting for manuals to arrive, but I suspect a component in the BFO circuit. Hopefully it is not an open BFO coil. Some BFO circiuits have a csapacitor or two in the BFO can which are hidden from a general re-capping. The SX 100 had one original? Hallicrafters brand tube after 50+ years. The BFO is my greatest current proble, Without the BFO, I cannot detect whether the BFO is working or not. The AVC works well and the S meter works also. Needs mechanical adjustment for calibration purposes. The noise limiter appears to be working some as when turned on, changes occur in the audio of the signal. Next, I will attack my very nice Hallicrafters, SX 96 and give it the same treatment. And then my nice S 53 receiver. I really? love to hear them when the old receivers give the cry of re-birth. 73, John, K5PGW From L at w0vt.us Mon Sep 11 15:34:00 2017 From: L at w0vt.us (Lee Bahr) Date: Mon, 11 Sep 2017 14:34:00 -0500 Subject: [Hallicrafters] WTB: SX-146 and HT46 Message-ID: Anyone on here with both or either a SX-146 receiver and a HT-46 transmitter they would want to sell?? I love these things and want to restore a set of them.? Candidates need to have good looking original meter, knobs and front panels.? Not interested in putting in time, money in parts restoring something not looking good when finished.? Description and pictures would help. Please list accessories such as VOX unit, extra two 10 meter crystals for each, crystal calibrator, AM filter, CW filter? Would be interested in "for parts only" units too. What do you want for it/them? Lee, w0vt --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From k5pgw at yahoo.com Tue Sep 12 11:32:53 2017 From: k5pgw at yahoo.com (John King) Date: Tue, 12 Sep 2017 15:32:53 +0000 (UTC) Subject: [Hallicrafters] removing nuts holding selectivity switch to chassis References: <1423239705.393566.1505230373663.ref@mail.yahoo.com> Message-ID: <1423239705.393566.1505230373663@mail.yahoo.com> I am attempting to loosen the nut holding the selectivity switch to the front of the chassis. Do anyone of you Hallicrafters mechanics know of a good way to loosen the recessed (to the panel) know a good way to loosen the nut holding the switch to the front of the chassis. I have a guitar wrench that is good to remove nuts from a panel without scratching but this nut is recessed and holds the switch to the front of the chassis. Anyone with experience removing this particular switch for capacitor change? Please advise. Thanks, and 73, John, K5PGW,? From anchor at ec.rr.com Tue Sep 12 19:24:19 2017 From: anchor at ec.rr.com (Al Parker) Date: Tue, 12 Sep 2017 19:24:19 -0400 Subject: [Hallicrafters] removing nuts holding selectivity switch to chassis In-Reply-To: <1423239705.393566.1505230373663@mail.yahoo.com> References: <1423239705.393566.1505230373663.ref@mail.yahoo.com> <1423239705.393566.1505230373663@mail.yahoo.com> Message-ID: <9560610d-d413-54a1-11b9-ffc237de220b@ec.rr.com> Hi John, (missed you at Shelby) I don't know this switch setup, but often there's another nut on it behind the chassis, to space it out correctly. If so, I've gotten to that nut, sometimes with a thin wrench, but usually with a small sharp punch. Place the tip of the punch on the hex of the nut to move it in the proper direction, then tap the punch with a hammer. Usually loosens it enuf to let you finish the job. 73, Al, W8UT www.boatanchors.org www.hammarlund.info "There is nothing -- absolutely nothing -- half so much worth doing as simply messing about in boats" Ratty, to Mole On 9/12/2017 11:32 AM, John King via Hallicrafters wrote: > I am attempting to loosen the nut holding the selectivity switch to the front of the chassis. Do anyone of you Hallicrafters mechanics know of a good way to loosen the recessed (to the panel) know a good way to loosen the nut holding the switch to the front of the chassis. I have a guitar wrench that is good to remove nuts from a panel without scratching but this nut is recessed and holds the switch to the front of the chassis. Anyone with experience removing this particular switch for capacitor change? Please advise. Thanks, and 73, John, K5PGW, > ______________________________________________________________ > Hallicrafters mailing list > Home: http://mailman.qth.net/mailman/listinfo/hallicrafters > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Hallicrafters at mailman.qth.net > > List Administrator: Duane Fischer, W8DBF > ** For Assistance: dfischer at usol.com ** > > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > From gsteffens at bevcomm.net Tue Sep 12 21:02:04 2017 From: gsteffens at bevcomm.net (Gerry Steffens) Date: Tue, 12 Sep 2017 20:02:04 -0500 Subject: [Hallicrafters] Hallicrafters PM-12-S needed Message-ID: <000301d32c2b$eab71800$c0254800$@bevcomm.net> Subject says it all. If there is one weighing a shelf down somewhere I have cash. Thanks, Gerry From zengmeiste at aol.com Thu Sep 14 10:58:51 2017 From: zengmeiste at aol.com (Jammer) Date: Thu, 14 Sep 2017 10:58:51 -0400 Subject: [Hallicrafters] sx-88 belts - too expensive? In-Reply-To: References: Message-ID: <15e80e64fd1-c07-6ee1c@webjas-vad203.srv.aolmail.net> RE sx-88 belts, aluminum discs, parts, etc. etc.... Well. there's expensive now vs expensive later. Now is always much much less expensive. Besides which, it's only money, and that's replaceable. Mostly. 73, Terry Bakowski KC9KEL on-air someday From k5pgw at yahoo.com Thu Sep 14 18:48:13 2017 From: k5pgw at yahoo.com (John King) Date: Thu, 14 Sep 2017 22:48:13 +0000 (UTC) Subject: [Hallicrafters] 6SC7 tubes new or used wanted References: <954487981.26837.1505429293622.ref@mail.yahoo.com> Message-ID: <954487981.26837.1505429293622@mail.yahoo.com> I have a number of Hallicrafters receivers that I am? recapping and bringing back to life. I am looking for several new or used 6SC7 tubes for my S85, SX99, SX96, SX 100 and several other models. If you have these new or used that you can dispose of, please send me an email letting me know what you have and wish to dispose of. I AM NOT LOOKING FOR HANDOUTS. If you are familiar with the tube line ups of older, and earlier models of Hallicrfters receivers, I am interested in tubes for them because I have Hallicrafters SX25,? S38C, S40, S40A, S40B, S77, S53, S85, SX99, SX96 SX100 and SX 101A..? The early models usually have the same tube lineup. Thanks for checking your tube stash and junk box. 73, John, K5PGW From 1oldlens1 at ix.netcom.com Thu Sep 14 19:15:48 2017 From: 1oldlens1 at ix.netcom.com (Richard Knoppow) Date: Thu, 14 Sep 2017 16:15:48 -0700 Subject: [Hallicrafters] 6SC7 tubes new or used wanted In-Reply-To: <954487981.26837.1505429293622@mail.yahoo.com> References: <954487981.26837.1505429293622.ref@mail.yahoo.com> <954487981.26837.1505429293622@mail.yahoo.com> Message-ID: <0d6d8dde-ea3d-92bb-8c2c-db9fff2da73c@ix.netcom.com> I think you have to check each model separately. The 6SC7 is used in some but not in others. For instance, it is used in the SX-28 but not in the S-20R or S-40/A, it is used in the S-40B which has a redesigned detector and first audio circuit. The 6SC7 is a twin triode with a common cathode. There is a data sheet at: http://www.r-type.org/pdfs/6sc7.pdf On 9/14/2017 3:48 PM, John King via Hallicrafters wrote: > I have a number of Hallicrafters receivers that I am? recapping and bringing back to life. I am looking for several new or used 6SC7 tubes for my S85, SX99, SX96, SX 100 and several other models. If you have these new or used that you can dispose of, please send me an email letting me know what you have and wish to dispose of. I AM NOT LOOKING FOR HANDOUTS. > If you are familiar with the tube line ups of older, and earlier models of Hallicrfters receivers, I am interested in tubes for them because I have Hallicrafters SX25,? S38C, S40, S40A, S40B, S77, S53, S85, SX99, SX96 SX100 and SX 101A..? The early models usually have the same tube lineup. > Thanks for checking your tube stash and junk box. 73, John, K5PGW -- Richard Knoppow 1oldlens1 at ix.netcom.com WB6KBL From jeffv at op.net Thu Sep 14 21:02:05 2017 From: jeffv at op.net (jeff) Date: Thu, 14 Sep 2017 21:02:05 -0400 Subject: [Hallicrafters] 6SC7 tubes new or used wanted In-Reply-To: <0d6d8dde-ea3d-92bb-8c2c-db9fff2da73c@ix.netcom.com> References: <954487981.26837.1505429293622.ref@mail.yahoo.com> <954487981.26837.1505429293622@mail.yahoo.com> <0d6d8dde-ea3d-92bb-8c2c-db9fff2da73c@ix.netcom.com> Message-ID: On 09/14/2017 07:15 PM, Richard Knoppow wrote: > I think you have to check each model separately. The 6SC7 is used > in some but not in others. For instance, it is used in the SX-28 but not were they made with glass? I have a guitar amp that uses them and I've only seen metal. From 1oldlens1 at ix.netcom.com Thu Sep 14 21:22:22 2017 From: 1oldlens1 at ix.netcom.com (Richard Knoppow) Date: Thu, 14 Sep 2017 18:22:22 -0700 Subject: [Hallicrafters] 6SC7 tubes new or used wanted In-Reply-To: References: <954487981.26837.1505429293622.ref@mail.yahoo.com> <954487981.26837.1505429293622@mail.yahoo.com> <0d6d8dde-ea3d-92bb-8c2c-db9fff2da73c@ix.netcom.com> Message-ID: <8683575d-a6f2-4322-845b-4bd3bb9b91cf@ix.netcom.com> As far as I can tell from old tube data books they were metal tubes. Of course, there were both glass and metal of many tubes but I think this one was metal only. On 9/14/2017 6:02 PM, jeff wrote: > On 09/14/2017 07:15 PM, Richard Knoppow wrote: >> ???? I think you have to check each model separately.? The 6SC7 is >> used in some but not in others. For instance, it is used in the SX-28 >> but not > > were they made with glass? I have a guitar amp that uses them and I've > only seen metal. > -- Richard Knoppow 1oldlens1 at ix.netcom.com WB6KBL From jacques.f at videotron.ca Thu Sep 14 21:35:35 2017 From: jacques.f at videotron.ca (Jacques Fortin) Date: Thu, 14 Sep 2017 21:35:35 -0400 Subject: [Hallicrafters] 6SC7 tubes new or used wanted In-Reply-To: References: <954487981.26837.1505429293622.ref@mail.yahoo.com> <954487981.26837.1505429293622@mail.yahoo.com> <0d6d8dde-ea3d-92bb-8c2c-db9fff2da73c@ix.netcom.com> Message-ID: <002b01d32dc2$eea432c0$cbec9840$@videotron.ca> Hi all, I have some 6SC7 GT made of glass. Some NOS are on sale at: http://dbtubes.com/en/search?controller=search&orderby=position&orderway=des c&search_query=6sc7&submit_search= I'm not related to this site in any way but prices and service are good. 73, Jacques, VE2JFE -----Message d'origine----- De?: hallicrafters-bounces at mailman.qth.net [mailto:hallicrafters-bounces at mailman.qth.net] De la part de Richard Knoppow Envoy??: 14 septembre 2017 21:22 ??: jeff ; hallicrafters at mailman.qth.net Objet?: Re: [Hallicrafters] 6SC7 tubes new or used wanted As far as I can tell from old tube data books they were metal tubes. Of course, there were both glass and metal of many tubes but I think this one was metal only. On 9/14/2017 6:02 PM, jeff wrote: > On 09/14/2017 07:15 PM, Richard Knoppow wrote: >> ???? I think you have to check each model separately.? The 6SC7 is >> used in some but not in others. For instance, it is used in the SX-28 >> but not > > were they made with glass? I have a guitar amp that uses them and I've > only seen metal. > -- Richard Knoppow 1oldlens1 at ix.netcom.com WB6KBL ______________________________________________________________ Hallicrafters mailing list Home: http://mailman.qth.net/mailman/listinfo/hallicrafters Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Hallicrafters at mailman.qth.net List Administrator: Duane Fischer, W8DBF ** For Assistance: dfischer at usol.com ** This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html From 1oldlens1 at ix.netcom.com Thu Sep 14 21:40:27 2017 From: 1oldlens1 at ix.netcom.com (Richard Knoppow) Date: Thu, 14 Sep 2017 18:40:27 -0700 Subject: [Hallicrafters] 6SC7 tubes new or used wanted In-Reply-To: <002b01d32dc2$eea432c0$cbec9840$@videotron.ca> References: <954487981.26837.1505429293622.ref@mail.yahoo.com> <954487981.26837.1505429293622@mail.yahoo.com> <0d6d8dde-ea3d-92bb-8c2c-db9fff2da73c@ix.netcom.com> <002b01d32dc2$eea432c0$cbec9840$@videotron.ca> Message-ID: <1a56227c-d876-f19c-5225-7906dbb42602@ix.netcom.com> Well, that's the definitive answer. A lot of tubes were made both ways. On 9/14/2017 6:35 PM, Jacques Fortin wrote: > Hi all, > I have some 6SC7 GT made of glass. > Some NOS are on sale at: > http://dbtubes.com/en/search?controller=search&orderby=position&orderway=des > c&search_query=6sc7&submit_search= > I'm not related to this site in any way but prices and service are good. > > 73, Jacques, VE2JFE -- Richard Knoppow 1oldlens1 at ix.netcom.com WB6KBL From w5jv at hotmail.com Thu Sep 14 22:56:12 2017 From: w5jv at hotmail.com (Doug Hensley) Date: Fri, 15 Sep 2017 02:56:12 +0000 Subject: [Hallicrafters] Hallicrafters HA-1 (TO Keyer) woes Message-ID: Anyone with service experience on the HA-1? If so and you don't mind steering me a bit, get in touch directly please. Not on the list. Cheers, Doug W5JV From K2RJK at THEWOODENHAM.COM Fri Sep 15 07:53:39 2017 From: K2RJK at THEWOODENHAM.COM (Ray Keefe) Date: Fri, 15 Sep 2017 07:53:39 -0400 Subject: [Hallicrafters] 6SC7 tubes new or used wanted In-Reply-To: <1a56227c-d876-f19c-5225-7906dbb42602@ix.netcom.com> References: <954487981.26837.1505429293622.ref@mail.yahoo.com> <954487981.26837.1505429293622@mail.yahoo.com> <0d6d8dde-ea3d-92bb-8c2c-db9fff2da73c@ix.netcom.com> <002b01d32dc2$eea432c0$cbec9840$@videotron.ca> <1a56227c-d876-f19c-5225-7906dbb42602@ix.netcom.com> Message-ID: I have often wondered about the difference between metal and glass versions. What I have found is if the tube was made in both metal and glass the metal version would be called a 6SC7 and the glass version would be a 6SC7 GT (Glass Tube). Here's a link to an article from 1935 about metal vs glass tubes. http://www.rfcafe.com/references/radio-craft/metal-vs-glass-radio-tubes-radio-craft-october-1935.htm On 9/14/2017 9:40 PM, Richard Knoppow wrote: > Well, that's the definitive answer. A lot of tubes were made both ways. > > On 9/14/2017 6:35 PM, Jacques Fortin wrote: >> Hi all, >> I have some 6SC7 GT made of glass. >> Some NOS are on sale at: >> http://dbtubes.com/en/search?controller=search&orderby=position&orderway=des >> >> c&search_query=6sc7&submit_search= >> I'm not related to this site in any way but prices and service are good. >> >> 73, Jacques, VE2JFE > > -- Check out my shop for handmade unique gifts for Weddings and ham radio operators www.thewoodenham.com From w5jo at brightok.net Fri Sep 15 09:24:04 2017 From: w5jo at brightok.net (w5jo at brightok.net) Date: Fri, 15 Sep 2017 08:24:04 -0500 Subject: [Hallicrafters] 6SC7 tubes new or used wanted In-Reply-To: References: <954487981.26837.1505429293622.ref@mail.yahoo.com><954487981.26837.1505429293622@mail.yahoo.com><0d6d8dde-ea3d-92bb-8c2c-db9fff2da73c@ix.netcom.com><002b01d32dc2$eea432c0$cbec9840$@videotron.ca><1a56227c-d876-f19c-5225-7906dbb42602@ix.netcom.com> Message-ID: I wondered the same thing some years back. I replaced a metal tube in some receiver because it was very weak. So I got out my tools and lifted the tabs at the base of the tube. Struggling a bit I managed to separate the metal shell from the base to find a small glass tube, about the size of a miniature tube, inside surrounded by a lot of packing to absorb shock. So you have a glass tube inside a well packed metal frame made to help the tube survive a more rugged environment. At least the tube I took apart was that way. Jim W5JO -----Original Message----- I have often wondered about the difference between metal and glass versions. From 1oldlens1 at ix.netcom.com Fri Sep 15 10:32:11 2017 From: 1oldlens1 at ix.netcom.com (Richard Knoppow) Date: Fri, 15 Sep 2017 07:32:11 -0700 Subject: [Hallicrafters] 6SC7 tubes new or used wanted In-Reply-To: References: <954487981.26837.1505429293622.ref@mail.yahoo.com> <954487981.26837.1505429293622@mail.yahoo.com> <0d6d8dde-ea3d-92bb-8c2c-db9fff2da73c@ix.netcom.com> <002b01d32dc2$eea432c0$cbec9840$@videotron.ca> <1a56227c-d876-f19c-5225-7906dbb42602@ix.netcom.com> Message-ID: <92bc4dcc-ccb4-9efe-7d5d-a7cf3fc3117a@ix.netcom.com> Beware that this is a very early article. Metal tubes were introduced about 1934 although I don't remember the exact year. Early metal tubes had some problems with their seals so were sometimes a little gassy. The problem was solved before long. There are small differences in interelectrode capacitances. In some cases glass tubes continued to be preferred over metal ones. Metal tubes were claimed to have perfect shielding but that is not always the case. There are differences in size, for instance, I can not use a glass 6SA7 in my S-40A because it is just slightly too large to clear the stop pin on the band spread capacitor. That my not be true for other receivers of this model. BTW, a complete collection of "Radio Craft" is available at http://americanradiohistory.com/ along with many other early radio and broadcast magazines. http://americanradiohistory.com/Radio_Craft_Master_Page_Guide.htm On 9/15/2017 4:53 AM, Ray Keefe wrote: > I have often wondered about the difference between metal and glass > versions. > > What I have found is if the tube was made in both metal and glass the > metal version would be called a 6SC7 and the glass version would be a > 6SC7 GT (Glass Tube). > > Here's a link to an article from 1935 about metal vs glass tubes. > http://www.rfcafe.com/references/radio-craft/metal-vs-glass-radio-tubes-radio-craft-october-1935.htm > > > > > On 9/14/2017 9:40 PM, Richard Knoppow wrote: >> Well, that's the definitive answer. A lot of tubes were made both ways. >> >> On 9/14/2017 6:35 PM, Jacques Fortin wrote: >>> Hi all, >>> I have some 6SC7 GT made of glass. >>> Some NOS are on sale at: >>> http://dbtubes.com/en/search?controller=search&orderby=position&orderway=des >>> >>> c&search_query=6sc7&submit_search= >>> I'm not related to this site in any way but prices and service are good. >>> >>> 73, Jacques, VE2JFE >> >> > -- Richard Knoppow 1oldlens1 at ix.netcom.com WB6KBL From gharmon at idworld.net Fri Sep 15 11:18:11 2017 From: gharmon at idworld.net (Gary H. Harmon, Jr.) Date: Fri, 15 Sep 2017 10:18:11 -0500 Subject: [Hallicrafters] Need SX-115 Parts Message-ID: 73, Gary H. Harmon, Jr. - K5JWK - HAM Radio and ATARI Archaeologist 6003 Archwood San Antonio, TX 78239-1504 (210) 657-1549 (210) 884-6926 (210) 657-1549 gharmon at idworld.net "Retirement = Every day is a Saturday except Sunday" http://www.grissomroadcoc.org From k9dt at comcast.net Fri Sep 15 12:39:07 2017 From: k9dt at comcast.net (ROBERT JURISH) Date: Fri, 15 Sep 2017 11:39:07 -0500 (CDT) Subject: [Hallicrafters] Hallicrafters Digest, Vol 163, Issue 5 In-Reply-To: References: Message-ID: <242084677.784721.1505493552163@connect.xfinity.com> I have 2 NOS. boxed and 1 good used tssted in quality tube testers. Bob K9dt at comcast.net > On September 15, 2017 at 9:33 AM hallicrafters-request at mailman.qth.net wrote: > > > Send Hallicrafters mailing list submissions to > hallicrafters at mailman.qth.net > > To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.qth.net/mailman/listinfo/hallicrafters > or, via email, send a message with subject or body 'help' to > hallicrafters-request at mailman.qth.net > > You can reach the person managing the list at > hallicrafters-owner at mailman.qth.net > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Hallicrafters digest..." > > > Today's Topics: > > 1. Re: 6SC7 tubes new or used wanted (Jacques Fortin) > 2. Re: 6SC7 tubes new or used wanted (Richard Knoppow) > 3. Hallicrafters HA-1 (TO Keyer) woes (Doug Hensley) > 4. Re: 6SC7 tubes new or used wanted (Ray Keefe) > 5. Re: 6SC7 tubes new or used wanted (w5jo at brightok.net) > 6. Re: 6SC7 tubes new or used wanted (Richard Knoppow) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 14 Sep 2017 21:35:35 -0400 > From: "Jacques Fortin" > To: "'Richard Knoppow'" <1oldlens1 at ix.netcom.com>, "'jeff'" > , > Subject: Re: [Hallicrafters] 6SC7 tubes new or used wanted > Message-ID: <002b01d32dc2$eea432c0$cbec9840$@videotron.ca> > Content-Type: text/plain; charset="iso-8859-1" > > Hi all, > I have some 6SC7 GT made of glass. > Some NOS are on sale at: > http://dbtubes.com/en/search?controller=search&orderby=position&orderway=des > c&search_query=6sc7&submit_search= > I'm not related to this site in any way but prices and service are good. > > 73, Jacques, VE2JFE > > -----Message d'origine----- > De?: hallicrafters-bounces at mailman.qth.net > [mailto:hallicrafters-bounces at mailman.qth.net] De la part de Richard Knoppow > Envoy??: 14 septembre 2017 21:22 > ??: jeff ; hallicrafters at mailman.qth.net > Objet?: Re: [Hallicrafters] 6SC7 tubes new or used wanted > > As far as I can tell from old tube data books they were metal tubes. > Of course, there were both glass and metal of many tubes but I think this > one was metal only. > > On 9/14/2017 6:02 PM, jeff wrote: > > On 09/14/2017 07:15 PM, Richard Knoppow wrote: > >> ???? I think you have to check each model separately.? The 6SC7 is > >> used in some but not in others. For instance, it is used in the SX-28 > >> but not > > > > were they made with glass? I have a guitar amp that uses them and I've > > only seen metal. > > > > -- > Richard Knoppow > 1oldlens1 at ix.netcom.com > WB6KBL > ______________________________________________________________ > Hallicrafters mailing list > Home: http://mailman.qth.net/mailman/listinfo/hallicrafters > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Hallicrafters at mailman.qth.net > > List Administrator: Duane Fischer, W8DBF > ** For Assistance: dfischer at usol.com ** > > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > > > ------------------------------ > > Message: 2 > Date: Thu, 14 Sep 2017 18:40:27 -0700 > From: Richard Knoppow <1oldlens1 at ix.netcom.com> > To: Jacques Fortin , 'jeff' , > hallicrafters at mailman.qth.net > Subject: Re: [Hallicrafters] 6SC7 tubes new or used wanted > Message-ID: <1a56227c-d876-f19c-5225-7906dbb42602 at ix.netcom.com> > Content-Type: text/plain; charset=windows-1252; format=flowed > > Well, that's the definitive answer. A lot of tubes were made both ways. > > On 9/14/2017 6:35 PM, Jacques Fortin wrote: > > Hi all, > > I have some 6SC7 GT made of glass. > > Some NOS are on sale at: > > http://dbtubes.com/en/search?controller=search&orderby=position&orderway=des > > c&search_query=6sc7&submit_search= > > I'm not related to this site in any way but prices and service are good. > > > > 73, Jacques, VE2JFE > > > -- > Richard Knoppow > 1oldlens1 at ix.netcom.com > WB6KBL > > > ------------------------------ > > Message: 3 > Date: Fri, 15 Sep 2017 02:56:12 +0000 > From: Doug Hensley > To: "hallicrafters at mailman.qth.net" , > boatanchors mailman.qth.net > Subject: [Hallicrafters] Hallicrafters HA-1 (TO Keyer) woes > Message-ID: > > > Content-Type: text/plain; charset="iso-8859-1" > > Anyone with service experience on the HA-1? If so and you don't mind steering me a bit, get in touch directly please. Not on the list. > > > Cheers, > > > Doug W5JV > > > > > > > > > > ------------------------------ > > Message: 4 > Date: Fri, 15 Sep 2017 07:53:39 -0400 > From: Ray Keefe > To: hallicrafters at mailman.qth.net > Subject: Re: [Hallicrafters] 6SC7 tubes new or used wanted > Message-ID: > Content-Type: text/plain; charset=utf-8; format=flowed > > I have often wondered about the difference between metal and glass > versions. > > What I have found is if the tube was made in both metal and glass the > metal version would be called a 6SC7 and the glass version would be a > 6SC7 GT (Glass Tube). > > Here's a link to an article from 1935 about metal vs glass tubes. > http://www.rfcafe.com/references/radio-craft/metal-vs-glass-radio-tubes-radio-craft-october-1935.htm > > > > > On 9/14/2017 9:40 PM, Richard Knoppow wrote: > > Well, that's the definitive answer. A lot of tubes were made both ways. > > > > On 9/14/2017 6:35 PM, Jacques Fortin wrote: > >> Hi all, > >> I have some 6SC7 GT made of glass. > >> Some NOS are on sale at: > >> http://dbtubes.com/en/search?controller=search&orderby=position&orderway=des > >> > >> c&search_query=6sc7&submit_search= > >> I'm not related to this site in any way but prices and service are good. > >> > >> 73, Jacques, VE2JFE > > > > > > -- > Check out my shop for handmade unique gifts for Weddings and ham radio > operators www.thewoodenham.com > > > ------------------------------ > > Message: 5 > Date: Fri, 15 Sep 2017 08:24:04 -0500 > From: > To: > Subject: Re: [Hallicrafters] 6SC7 tubes new or used wanted > Message-ID: > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > reply-type=response > > > I wondered the same thing some years back. I replaced a metal tube in some > receiver because it was very weak. So I got out my tools and lifted the > tabs at the base of the tube. > > Struggling a bit I managed to separate the metal shell from the base to find > a small glass tube, about the size of a miniature tube, inside surrounded > by a lot of packing to absorb shock. So you have a glass tube inside a > well packed metal frame made to help the tube survive a more rugged > environment. At least the tube I took apart was that way. > > Jim > W5JO > > -----Original Message----- > > I have often wondered about the difference between metal and glass > versions. > > > > ------------------------------ > > Message: 6 > Date: Fri, 15 Sep 2017 07:32:11 -0700 > From: Richard Knoppow <1oldlens1 at ix.netcom.com> > To: hallicrafters at mailman.qth.net > Subject: Re: [Hallicrafters] 6SC7 tubes new or used wanted > Message-ID: <92bc4dcc-ccb4-9efe-7d5d-a7cf3fc3117a at ix.netcom.com> > Content-Type: text/plain; charset=windows-1252; format=flowed > > Beware that this is a very early article. Metal tubes were > introduced about 1934 although I don't remember the exact year. Early > metal tubes had some problems with their seals so were sometimes a > little gassy. The problem was solved before long. There are small > differences in interelectrode capacitances. In some cases glass tubes > continued to be preferred over metal ones. Metal tubes were claimed to > have perfect shielding but that is not always the case. There are > differences in size, for instance, I can not use a glass 6SA7 in my > S-40A because it is just slightly too large to clear the stop pin on the > band spread capacitor. That my not be true for other receivers of this > model. > BTW, a complete collection of "Radio Craft" is available at > http://americanradiohistory.com/ > along with many other early radio and broadcast magazines. > http://americanradiohistory.com/Radio_Craft_Master_Page_Guide.htm > > On 9/15/2017 4:53 AM, Ray Keefe wrote: > > I have often wondered about the difference between metal and glass > > versions. > > > > What I have found is if the tube was made in both metal and glass the > > metal version would be called a 6SC7 and the glass version would be a > > 6SC7 GT (Glass Tube). > > > > Here's a link to an article from 1935 about metal vs glass tubes. > > http://www.rfcafe.com/references/radio-craft/metal-vs-glass-radio-tubes-radio-craft-october-1935.htm > > > > > > > > > > On 9/14/2017 9:40 PM, Richard Knoppow wrote: > >> Well, that's the definitive answer. A lot of tubes were made both ways. > >> > >> On 9/14/2017 6:35 PM, Jacques Fortin wrote: > >>> Hi all, > >>> I have some 6SC7 GT made of glass. > >>> Some NOS are on sale at: > >>> http://dbtubes.com/en/search?controller=search&orderby=position&orderway=des > >>> > >>> c&search_query=6sc7&submit_search= > >>> I'm not related to this site in any way but prices and service are good. > >>> > >>> 73, Jacques, VE2JFE > >> > >> > > > > -- > Richard Knoppow > 1oldlens1 at ix.netcom.com > WB6KBL > > > ------------------------------ > > ______________________________________________________________ > Hallicrafters mailing list > Home: http://mailman.qth.net/mailman/listinfo/hallicrafters > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Hallicrafters at mailman.qth.net > > > List Administrator: Duane Fischer, W8DBF > ** For Assistance: dfischer at usol.com ** > > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > End of Hallicrafters Digest, Vol 163, Issue 5 > ********************************************* From holden7471 at msn.com Sun Sep 24 13:25:07 2017 From: holden7471 at msn.com (howard holden) Date: Sun, 24 Sep 2017 17:25:07 +0000 Subject: [Hallicrafters] Fall 2017 AM/SSB Classic Exchange Message-ID: The AM-SSB-FM CX will run from 1300 UTC October 1 to 0800 UTC October 2, 2017 ?(9 AM Eastern Time on Sunday to 3 AM Eastern Time Monday) AND ?from 1300 UTC October 3 to 0800 UTC October 4, 2017 ?(9 AM Eastern Time on Tuesday to 3 AM Eastern Time Wednesday) ?Call: "CQ Classic Exchange" Suggested Frequencies -- plus/minus QRM ?Listen up and down 5 to 10 Kc for crystal controlled stations AM? 1.890 mc. 3.860 mc. 7.270 mc. 14.280 mc. 21.400 mc. 29.000 mc. 50.300 MC. 144.300 mc. SSB 1.920 mc. 3.840 mc. 7.250 mc. 14.260 mc. 21.380 mc. 28.600 mc. 50.125 mc. 144.200 mc. The CX is a no-pressure contest celebrating the older commercial and homebrew equipment that was the pride and joy of ham shacks many decades ago. The object is to encourage restoration, operation and enjoyment of this older Classic equipment. However, you need not operate a Classic rig to participate in the CX. YOU MAY USE ANY RIG in the contest although new gear is a distinct scoring disadvantage. You can still work the "great ones" with modern equipment. There are new Bonus Scores for using the same model rigs as your Novice station and for using an RME receiver and for using a WRL transmitter. Awards will be given in two classes: 1. Three or fewer receiver-transmitter pairs 2. Four or more receiver-transmitter pairs. Send logs, comments, anecdotes, pictures, etc. to J.D. "Mac" Mac Aulay, WQ8U at wq8u at arrl.net ?Full details at: http://classicexchange.org/sep17/sep17ann.html Questions? email me! CU on the air for CX! 73, Howie WB2AWQ/7

This page last updated 20 Nov 2017.