From robert at isquare.com Wed Sep 3 13:02:27 2014 From: robert at isquare.com (Bob Sullivan) Date: Wed, 3 Sep 2014 13:02:27 -0400 Subject: [Hallicrafters] SX-62B Manual Message-ID: <3A066EEF-026E-4298-866A-A5E2532AA8F5@isquare.com> I'm looking for an original SX-62B manual. Thanks in advance! 73, Bob W?YVA http://www.isquare.com/personal_pages/ras-hardware.htm From cateswa at msn.com Sat Sep 6 14:31:49 2014 From: cateswa at msn.com (Walt Cates) Date: Sat, 6 Sep 2014 13:31:49 -0500 Subject: [Hallicrafters] FIRST AIRFORCE ONE Message-ID: This is way off topic but I know there are a lot of us old Navy and Air force vets that have logged many hours in the old Super Connies. https://www.youtube.com/watch_popup?v=ehwvZXVKmPU Best Regards, Walt Cates, WD0GOF A generous person will prosper; whoever refreshes others will be refreshed. From n1rj at roadrunner.com Sat Sep 6 18:46:38 2014 From: n1rj at roadrunner.com (Roger D Johnson) Date: Sat, 06 Sep 2014 18:46:38 -0400 Subject: [Hallicrafters] FIRST AIRFORCE ONE In-Reply-To: References: Message-ID: <540B8ECE.6000802@roadrunner.com> I think the Connies are some of the most beautiful planes to ever grace the skies! When I was attending Army Signal School at Ft Gordon, Ga, ca 1959/1960, I saw the Columbine at the Augusta airport. I assume Ike was there for a round of golf. A few years ago I was in Auburn, Me looking for an RV dealer. I wandered by the airport and was astonished to see two Connies parked there! Although I've flown in many Douglas piston engined transports, I never had the pleasure to fly in a Connie. Here's a link to the two in Auburn. Evidently, Lufthansa plans to restore one. https://www.youtube.com/watch?v=_cUgKfX6A_s 73, Roger On 9/6/2014 2:31 PM, Walt Cates wrote: > This is way off topic but I know there are a lot of us old Navy and Air force vets that have logged many hours in the old Super Connies. > > https://www.youtube.com/watch_popup?v=ehwvZXVKmPU > > > Best Regards, Walt Cates, WD0GOF > > A generous person will prosper; whoever refreshes others will be refreshed. > > ______________________________________________________________ > 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 ken at wa0sbu.com Sat Sep 6 21:26:31 2014 From: ken at wa0sbu.com (Ken) Date: Sat, 06 Sep 2014 20:26:31 -0500 Subject: [Hallicrafters] FIRST AIRFORCE ONE In-Reply-To: References: Message-ID: <1410053191.12126.3.camel@ken-Latitude-D630> Nice video Walt, thanks on Sat, 2014-09-06 at 13:31 -0500, Walt Cates wrote: > This is way off topic but I know there are a lot of us old Navy and Air force vets that have logged many hours in the old Super Connies. > > https://www.youtube.com/watch_popup?v=ehwvZXVKmPU > > > Best Regards, Walt Cates, WD0GOF > > A generous person will prosper; whoever refreshes others will be refreshed. > > ______________________________________________________________ > 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 radio at daileyservices.com Sat Sep 6 21:33:25 2014 From: radio at daileyservices.com (radio at daileyservices.com) Date: Sat, 6 Sep 2014 19:33:25 -0600 Subject: [Hallicrafters] Hallicrafters Digest, Vol 128, Issue 1 References: Message-ID: <86E06BFE859C4394B9DCDBE6045B2393@w0eaj> I've redone two SX-99's, and both had black dials with backlighted translucent markings. Tom - W0EAJ --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com From radio at daileyservices.com Sat Sep 6 21:36:23 2014 From: radio at daileyservices.com (radio at daileyservices.com) Date: Sat, 6 Sep 2014 19:36:23 -0600 Subject: [Hallicrafters] Connies with 4 R-4360's References: Message-ID: I vividly recall VW-1 birds at Naval Air Station, Agana (Guam) - I was taking my very first flying lessons at the aero club there, and we saw them often. what a great ship. Tom - W0EAJ --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com From pincon at erols.com Sun Sep 7 08:30:19 2014 From: pincon at erols.com (Charlie T, K3ICH) Date: Sun, 7 Sep 2014 08:30:19 -0400 Subject: [Hallicrafters] Dial Glass for S-40 or S-76 Message-ID: <115BCA935D214356B3E636146937119B@pinnacle05df05> I'm having a few dial glass windows made that will fit the Hallicrafters S-76 & S-40 + other receivers. This is the semi-circular window that has the hairline and Band numbers 1,2,3 & 4 screened in reverse. Rather than make these from plastic, they are made from good quality real gals and should be much more scratch resistant that the original (and less brittle....don't ask me how I know it's brittle ) My question is, what color to use. All the S-76's I've seen are screened in yellow as are a couple S-40's, but I also have an S-40 with a red hairline. I would appreciate any informal comments, Off Line if you please, as to what color the windows in your S-40 or similar receivers are screened. You can send replies directly to k3ich at arrl dot net. As soon as I get a number of replies on the proper color, we'll start the production screening process. By the way, the glass edges are ground down so as to make them much less lethal in handling. They are a tad thicker than the originals, but seem to fit fine. 73, Charlie k3ICH From pincon at erols.com Sun Sep 7 08:48:52 2014 From: pincon at erols.com (Charlie T, K3ICH) Date: Sun, 7 Sep 2014 08:48:52 -0400 Subject: [Hallicrafters] Dial Glass for S-40 or S-76 References: <115BCA935D214356B3E636146937119B@pinnacle05df05> Message-ID: Doncha luv spell chex??? The windows are obviously NOT made from GALS..... Sorry, Chas ----- Original Message ----- From: "Charlie T, K3ICH" To: Sent: Sunday, September 07, 2014 8:30 AM Subject: Re: [Hallicrafters] Dial Glass for S-40 or S-76 > I'm having a few dial glass windows made that will fit the Hallicrafters > S-76 & S-40 + other receivers. This is the semi-circular window that has > the hairline and Band numbers 1,2,3 & 4 screened in reverse. Rather than > make these from plastic, they are made from good quality real gals and > should be much more scratch resistant that the original (and less > brittle....don't ask me how I know it's brittle ) My question is, what > color to use. All the S-76's I've seen are screened in yellow as are a > couple S-40's, but I also have an S-40 with a red hairline. > I would appreciate any informal comments, Off Line if you please, as to > what color the windows in your S-40 or similar receivers are screened. > > You can send replies directly to k3ich at arrl dot net. As soon as I get > a number of replies on the proper color, we'll start the production > screening process. > > By the way, the glass edges are ground down so as to make them much less > lethal in handling. They are a tad thicker than the originals, but seem > to fit fine. > > 73, Charlie k3ICH > ______________________________________________________________ > 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 cateswa at msn.com Mon Sep 8 16:00:17 2014 From: cateswa at msn.com (Walt Cates) Date: Mon, 8 Sep 2014 15:00:17 -0500 Subject: [Hallicrafters] hp digital recorder Message-ID: Does any one have an HP-5050B or 5055A they would part with. Or better yet a cleaver way to dump the 4 bit bcd from my HP-5300A into my computer to an EXCELL work sheet??? Best Regards, Walt Cates, WD0GOF A generous person will prosper; whoever refreshes others will be refreshed. From ac1wye at gmail.com Tue Sep 9 15:43:27 2014 From: ac1wye at gmail.com (Alexander N. Gerli) Date: Tue, 9 Sep 2014 15:43:27 -0400 Subject: [Hallicrafters] SR-400A power output Message-ID: Hello, Friends, I'm starting to think about realigning my SR-400A. Hears just fine, but the power out isn't where it should be. I have several pairs of 6KD6s I can use besides the pair in the rig. First of all, the present PA tubes appear to be balanced OK. I can get them adjusted to within .425 and .427Vdc on J11 and J12 with the rig tuned for as near 300mA as I can achieve. What is strange is that my max PO into my Waters metered DL is about 80W in CW mode. No way that's right. If I go to LSB for instance, and whistle, I can get easily 175W. This is using 7250kHz. Can't explain the big difference, except for a need for realignment of the driver stages? I haven't used the rig for about six months. And, over the past two days, I've been on several favorite nets with good signal reports. But the PO seems to be in the tank. Probably needs to have the neutralization checked as well? ?73,? ?? ?Sandy AC1Y? Alexander N. Gerli, Sr. 548 Allred Mill Road Mount Airy, NC 27030-2202 Scotsmen walk about 900 miles each year. A Scotsman drinks around 45 gallons of Whisky a year. Scotsmen get about 20 Miles Per Gallon. From cateswa at msn.com Tue Sep 9 16:47:51 2014 From: cateswa at msn.com (Walt Cates) Date: Tue, 9 Sep 2014 15:47:51 -0500 Subject: [Hallicrafters] FW: SR-400A power output In-Reply-To: References: , Message-ID: From: cateswa at msn.com To: ac1wye at gmail.com Subject: RE: [Hallicrafters] SR-400A power output Date: Tue, 9 Sep 2014 15:46:00 -0500 Sandy, Low power in CW with reasonable power in SSB is a common problem in the entire SR series. If you get acceptable power in SSB there is most likely no fault in the rig. It just needs proper alignment of two key items. First the VFO shift (VFO correction adjustment) section 8-8-D in the manual. The CW mode uses USB functions and is the VFO correction is not adjusted properly you will not have enough drive. Second is alignment of L15 and L16. A good test of the L15 and L16 alignment is to tune the receiver up in USB mode with input from a signal generator. Then slowly tune across the signal and watch the s-meter. If the response has a secondary peak on either side of the peak then L15 and L16 need to be aligned. Best Regards, Walt Cates, WD0GOF A generous person will prosper; whoever refreshes others will be refreshed. > Date: Tue, 9 Sep 2014 15:43:27 -0400 > From: ac1wye at gmail.com > To: hallicrafters at mailman.qth.net > Subject: [Hallicrafters] SR-400A power output > > Hello, Friends, > > I'm starting to think about realigning my SR-400A. Hears just fine, but the > power out isn't where it should be. I have several pairs of 6KD6s I can use > besides the pair in the rig. > > First of all, the present PA tubes appear to be balanced OK. I can get them > adjusted to within .425 and .427Vdc on J11 and J12 with the rig tuned for > as near 300mA as I can achieve. > > What is strange is that my max PO into my Waters metered DL is about 80W in > CW mode. No way that's right. If I go to LSB for instance, and whistle, I > can get easily 175W. This is using 7250kHz. Can't explain the big > difference, except for a need for realignment of the driver stages? I > haven't used the rig for about six months. And, over the past two days, > I've been on several favorite nets with good signal reports. But the PO > seems to be in the tank. Probably needs to have the neutralization checked > as well? > > ?73,? > ?? > > > ?Sandy AC1Y? > > > Alexander N. Gerli, Sr. > 548 Allred Mill Road > Mount Airy, NC 27030-2202 > > Scotsmen walk about 900 miles each year. > A Scotsman drinks around 45 gallons of Whisky a year. > Scotsmen get about 20 Miles Per Gallon. > ______________________________________________________________ > 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 bcarling at cfl.rr.com Tue Sep 9 17:50:12 2014 From: bcarling at cfl.rr.com (bcarling at cfl.rr.com) Date: Tue, 09 Sep 2014 17:50:12 -0400 Subject: [Hallicrafters] FS: 50 ohm Dummy Load 200 Watts Message-ID: <540F7614.13676.1D9F0C@bcarling.cfl.rr.com> For sale: 50 ohm NON-INDUCTIVE RESISTORS, new. Rated 200 watts RF continuous. Will accept 1500 watts easily for 10 seconds without burning out. Great for a homebrew dummy load for HF. Dimensions: 8.75" long X 1.5" diameter / 222 mm X 38 mm Solder terminals. Available for $24.00 each plus shipping. 73 - Brian Carling, AF4K Best regards - Brian Carling AF4K Crystals Co. 117 Sterling Pine St. Sanford, FL 32773 Tel: +USA 321-262-5471 Brian Carling, Radio AF4K From james.liles at comcast.net Tue Sep 9 21:08:19 2014 From: james.liles at comcast.net (james.liles at comcast.net) Date: Tue, 9 Sep 2014 20:08:19 -0500 Subject: [Hallicrafters] SR-400A output In-Reply-To: References: Message-ID: Hello Alexander, Walt, The SR-400A usually has more than adequate drive in CW mode. V3 is a 6HL8A rather than 7059 doubling the I.F. amplification. Couple of suggestions along with Walts. Check the carrier oscillators for USB and LSB to verify they are where they belong. The USB carrier which is used for CW, tune, and USB is by specification a bit lower than correct design. This moves the carrier about 120 cycles further into the filter band pass than normal in order to pass through the filter at a higher level (Further up the filter skirt than the ?25db point. The consequence is the USB audio sounds to favor the high side audio. A correctly aligned SR-400A will generate more than enough drive in CW and tune mode to max out the finals enabling you to raise the USB carrier frequency 120 cycles for more pleasant audio. You can check the drive by wrapping a strap around the 12BY7A attaching your scope to the strap and measuring the voltage. Full drive is achieved when 46 volts is read. Kindest regards Jim K9AXN Message: 6 Date: Tue, 9 Sep 2014 15:43:27 -0400 From: "Alexander N. Gerli" To: hallicrafters at mailman.qth.net Subject: [Hallicrafters] SR-400A power output Message-ID: Content-Type: text/plain; charset=UTF-8 Hello, Friends, I'm starting to think about realigning my SR-400A. Hears just fine, but the power out isn't where it should be. I have several pairs of 6KD6s I can use besides the pair in the rig. First of all, the present PA tubes appear to be balanced OK. I can get them adjusted to within .425 and .427Vdc on J11 and J12 with the rig tuned for as near 300mA as I can achieve. What is strange is that my max PO into my Waters metered DL is about 80W in CW mode. No way that's right. If I go to LSB for instance, and whistle, I can get easily 175W. This is using 7250kHz. Can't explain the big difference, except for a need for realignment of the driver stages? I haven't used the rig for about six months. And, over the past two days, I've been on several favorite nets with good signal reports. But the PO seems to be in the tank. Probably needs to have the neutralization checked as well? ?73,? ?? ?Sandy AC1Y? Alexander N. Gerli, Sr. 548 Allred Mill Road Mount Airy, NC 27030-2202 Scotsmen walk about 900 miles each year. A Scotsman drinks around 45 gallons of Whisky a year. Scotsmen get about 20 Miles Per Gallon. From holden7471 at msn.com Wed Sep 10 07:09:27 2014 From: holden7471 at msn.com (Howard Holden) Date: Wed, 10 Sep 2014 04:09:27 -0700 Subject: [Hallicrafters] Fall 2014 Classic Exchange Message-ID: The AM - SSB - FM CX will run from 1300 UTC September 14 to 0700 UTC September 15, 2014. (9 AM Eastern Time on Sunday to 3 AM Eastern Time Monday) Suggested frequencies are: 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. For full details, see the CX website http://www.classicexchange.org/sep14ann.html Questions? Contact me! See ya there! 73, Howie WB2AWQ at arrl.net From jbalestrini at surewest.net Thu Sep 11 16:25:21 2014 From: jbalestrini at surewest.net (Joe Balestrini) Date: Thu, 11 Sep 2014 13:25:21 -0700 Subject: [Hallicrafters] operating and service manuals In-Reply-To: <540F7614.13676.1D9F0C@bcarling.cfl.rr.com> References: <540F7614.13676.1D9F0C@bcarling.cfl.rr.com> Message-ID: Hi All, I have nicely bound service manuals for the HT-30 MK 1 and SX-115. I'll happily give them to anyone interested for the cost of postage. 73's Joe KG6IMI From jbalestrini at surewest.net Fri Sep 12 00:17:19 2014 From: jbalestrini at surewest.net (Joe Balestrini) Date: Thu, 11 Sep 2014 21:17:19 -0700 Subject: [Hallicrafters] operating and service manuals In-Reply-To: References: <540F7614.13676.1D9F0C@bcarling.cfl.rr.com> Message-ID: <6C587F2F-A3CD-4A44-B691-93C33549DBFD@surewest.net> Hi All, I'm stunned that I've gotten so many requests for the manuals. I'll select a couple of "good homes" from all the respondents tomorrow. Thanks for your strong interest. Joe On Sep 11, 2014, at 1:25 PM, Joe Balestrini wrote: > Hi All, > > I have nicely bound service manuals for the HT-30 MK 1 and SX-115. I'll happily give them to anyone interested for the cost of postage. > > 73's > > Joe KG6IMI > From k5mbx at suddenlink.net Fri Sep 12 01:24:11 2014 From: k5mbx at suddenlink.net (Charlie Hugg) Date: Fri, 12 Sep 2014 00:24:11 -0500 Subject: [Hallicrafters] FS HT-7, R46A, SX25 Message-ID: <002301cfce49$c9212200$5b636600$@net> I have for sale the following Hallicrafters gear: 1. HT-7 Frequency Standard. Complete but rough. $35 2. R-46A Speaker. Cosmetically pretty good. Some scratches and the grill needs reflocking. Speaker is original but cone is bad. $45 3. SX-25 Receiver. Fair cosmetic condition. Needs restoration. Untested. $45 Pictures available for all items. Prices do not including shipping. Thanks, Charlie Hugg, K5MBX From hallicrafters at mailman.qth.net Fri Sep 12 17:20:21 2014 From: hallicrafters at mailman.qth.net (Greg Gore via Hallicrafters) Date: Fri, 12 Sep 2014 17:20:21 -0400 Subject: [Hallicrafters] operating and service manuals In-Reply-To: <6C587F2F-A3CD-4A44-B691-93C33549DBFD@surewest.net> References: <540F7614.13676.1D9F0C@bcarling.cfl.rr.com> <6C587F2F-A3CD-4A44-B691-93C33549DBFD@surewest.net> Message-ID: <8D19CE67E6B5A19-E28-32494@webmail-va118.sysops.aol.com> Reminds me of a time years ago before the Internet when we had the "Rules of Ware" to sort out this kind of thing. Greg WA1KBQ -----Original Message----- From: Joe Balestrini To: hallicrafters Sent: Fri, Sep 12, 2014 2:22 pm Subject: Re: [Hallicrafters] operating and service manuals Hi All, I'm stunned that I've gotten so many requests for the manuals. I'll select a couple of "good homes" from all the respondents tomorrow. Thanks for your strong interest. Joe On Sep 11, 2014, at 1:25 PM, Joe Balestrini wrote: > Hi All, > > I have nicely bound service manuals for the HT-30 MK 1 and SX-115. I'll happily give them to anyone interested for the cost of postage. > > 73's > > Joe KG6IMI > ______________________________________________________________ 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 hallicrafterssr2000 at k9axn.com Fri Sep 12 20:07:11 2014 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Fri, 12 Sep 2014 19:07:11 -0500 Subject: [Hallicrafters] Silver plated solid copper buss wire 10, 12, and 14 AWG. Message-ID: <55C0404E2B03484D8D0FDE4FBD0FACC4@LILESJLAPTOP> Is anyone interested in the above wire to rewind damaged final coils? Kindest regards Jim K9AXN From bluegrassdakine at hotmail.com Sun Sep 14 04:22:52 2014 From: bluegrassdakine at hotmail.com (Raymond Cote) Date: Sun, 14 Sep 2014 03:22:52 -0500 Subject: [Hallicrafters] operating and service manuals In-Reply-To: <8D19CE67E6B5A19-E28-32494@webmail-va118.sysops.aol.com> References: <540F7614.13676.1D9F0C@bcarling.cfl.rr.com> <6C587F2F-A3CD-4A44-B691-93C33549DBFD@surewest.net> <8D19CE67E6B5A19-E28-32494@webmail-va118.sysops.aol.com> Message-ID: Yes those were fun to read and try to win with a bit of imagination. > On Sep 12, 2014, at 16:20, "Greg Gore via Hallicrafters" wrote: > > Reminds me of a time years ago before the Internet when we had the "Rules of Ware" to sort out this kind of thing. > > Greg > WA1KBQ > > > -----Original Message----- > From: Joe Balestrini > To: hallicrafters > Sent: Fri, Sep 12, 2014 2:22 pm > Subject: Re: [Hallicrafters] operating and service manuals > > > Hi All, > > I'm stunned that I've gotten so many requests for the manuals. I'll select a > couple of "good homes" from all the respondents tomorrow. Thanks for your > strong interest. Joe > > >> On Sep 11, 2014, at 1:25 PM, Joe Balestrini wrote: >> >> Hi All, >> >> I have nicely bound service manuals for the HT-30 MK 1 and SX-115. I'll > happily give them to anyone interested for the cost of postage. >> >> 73's >> >> Joe KG6IMI >> > > > ______________________________________________________________ > 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 bcarling at cfl.rr.com Mon Sep 15 07:21:18 2014 From: bcarling at cfl.rr.com (bcarling at cfl.rr.com) Date: Mon, 15 Sep 2014 07:21:18 -0400 Subject: [Hallicrafters] FS: Microphone Compressor - Limiter Message-ID: <5416CBAE.19987.93DC6C@bcarling.cfl.rr.com> FOR SALE: Pro Audio Compressor - Limiter - ideal for AM and SSB stations. Do you want the best sounding audio you can get - add a little compression and limiting. Here is a versatile Behringer MDX4400 Multicom Pro audio processor, 19" rack-mount. 120V AC operation. Professional audio processor, great for the ham shack. Uses 1/4" TRS and XLR connectors for microphone I/O. INPUT AND OUTPUT level is VU metered. Has up to 4 channels of compression-limiting with multiple adjustments for both effects. Combine compression with limiting. Looks new and works perfectly. Cost $179.00 new and now available for $50.00 plus shipping. Pictures: http://c1.zzounds.com/media/fit,2018by3200/quality,85/MDX4400_big- bba9a9b382797a8f85e85f2bdb348d6d.jpg http://images04.olx.pt/ui/33/28/37/Behringer-multicom-pro-mdx4400-Lazer_458172137_4.jpg 73 - Brian Carling, AF4K Brian Carling, Radio AF4K From holden7471 at msn.com Mon Sep 15 23:47:54 2014 From: holden7471 at msn.com (Howard Holden) Date: Mon, 15 Sep 2014 20:47:54 -0700 Subject: [Hallicrafters] Fall 2014 Classic Exchange Message-ID: The CW CX will run from 1300 UTC September 21 to 0700 UTC September 22, 2014 (9 AM Eastern Time on Sunday to 3 AM Eastern Time Monday) Send: "CQ CX" Suggested frequencies: 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. For full details, visit www.classicexchange.org/sep14ann.html Questions? Contact me! See you Sunday! Howie WB2AWQ/7 From ac1wye at gmail.com Tue Sep 23 13:59:51 2014 From: ac1wye at gmail.com (Alexander N. Gerli) Date: Tue, 23 Sep 2014 13:59:51 -0400 Subject: [Hallicrafters] SR-400A problem. Message-ID: Hello, and help! I'm working on realigning my SR-400A and I have a strange mechanical problem. With the cabinet in place, and the BOTTOM cover on, there is something odd - when changing from receive to MOX, the rig transmits! If I remove the bottom cover, all is fine. Can anyone give me an idea what's wrong here? ?73. Sandy AC1Y? Alexander N. Gerli, Sr. 548 Allred Mill Road Mount Airy, NC 27030-2202 Scotsmen walk about 900 miles each year. A Scotsman drinks around 45 gallons of Whisky a year. Scotsmen get about 20 Miles Per Gallon. From MLangston at pricegregory.com Tue Sep 23 14:12:53 2014 From: MLangston at pricegregory.com (Langston, Mike) Date: Tue, 23 Sep 2014 13:12:53 -0500 Subject: [Hallicrafters] SR-400A problem. In-Reply-To: References: Message-ID: <627B30DEC71573419D53A3A0921FAC921BBBE38E30@HOUMAIL02.quantaservices.local> Might not be mechanical at all. Think neutralization. Mike KL7CD Hello, and help! I'm working on realigning my SR-400A and I have a strange mechanical problem. With the cabinet in place, and the BOTTOM cover on, there is something odd - when changing from receive to MOX, the rig transmits! If I remove the bottom cover, all is fine. Can anyone give me an idea what's wrong here? ?73. Sandy AC1Y? From hallicrafterssr2000 at k9axn.com Tue Sep 23 14:36:46 2014 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Tue, 23 Sep 2014 13:36:46 -0500 Subject: [Hallicrafters] SR-400A problem. In-Reply-To: References: Message-ID: <96740BE08EF1474F991BD6670AA1B067@LILESJLAPTOP> The two rear screws for the rear bottom cover are too long. They screw in so far that they hit the chassis warping it. Look for what shorts when the rear chassis lip is warped. Kindest regards Jim K9AXN -----Original Message----- From: Alexander N. Gerli Sent: Tuesday, September 23, 2014 12:59 PM To: hallicrafters at mailman.qth.net Subject: [Hallicrafters] SR-400A problem. Hello, and help! I'm working on realigning my SR-400A and I have a strange mechanical problem. With the cabinet in place, and the BOTTOM cover on, there is something odd - when changing from receive to MOX, the rig transmits! If I remove the bottom cover, all is fine. Can anyone give me an idea what's wrong here? ?73. Sandy AC1Y? Alexander N. Gerli, Sr. 548 Allred Mill Road Mount Airy, NC 27030-2202 Scotsmen walk about 900 miles each year. A Scotsman drinks around 45 gallons of Whisky a year. Scotsmen get about 20 Miles Per Gallon. ______________________________________________________________ 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 cateswa at msn.com Tue Sep 23 16:03:42 2014 From: cateswa at msn.com (Walt Cates) Date: Tue, 23 Sep 2014 15:03:42 -0500 Subject: [Hallicrafters] RE; sr-400 problem Message-ID: As Jim said it is probably the length of the screws. The two in the rear compress the chassis lip in the rear of the rig. One of the screws in the front, if too long can make contact with the mic connector. You may also want to check the cover grounding tab to insure that it is contacting the plate between the pa final compartment and the relay compartment. All else fails, turn it up on its side, turn it on, and mount the bottom cover one screw at a time until it keys up. Best Regards, Walt Cates, WD0GOF A generous person will prosper; whoever refreshes others will be refreshed. From k9tr at btsnetworks.net Wed Sep 24 11:29:26 2014 From: k9tr at btsnetworks.net (Mark Shaum) Date: Wed, 24 Sep 2014 10:29:26 -0500 Subject: [Hallicrafters] SX-99 and plastic dials Message-ID: <5422E356.4070105@btsnetworks.net> My SX-99 came with the plastic dials (date and s/n not handy, sorry). The dials were somewhat discolored and I didn't think the lettering would survive cleaning, so I found a set of metal dials that look much better. I'll just have to relocate the pilot lights from behind to above the dials, as I recall. Now that I'm supposed to be retired (not exactly by choice, but will be 62 next year and formally do it then) you would think I could get around to this, but you would be amazed at how many honey-do's queue up over the years and now that "I'm too busy" won't work anymore they pop up to the top of the list :) 73! - Mark K9TR From pincon at erols.com Wed Sep 24 14:21:17 2014 From: pincon at erols.com (Charlie T, K3ICH) Date: Wed, 24 Sep 2014 14:21:17 -0400 Subject: [Hallicrafters] SX-99 and plastic dials References: <5422E356.4070105@btsnetworks.net> Message-ID: Actually, those plastic dials are not nearly as delicate as the green ones as used on the S-40's They'll erase with water!, but the white ones screened reversed in black are quite durable. You can safely scrub them with mild cleaner and a toothbrush. I've done a few and never lost a letter. 73, Charlie k3ICH ----- Original Message ----- From: "Mark Shaum" To: Sent: Wednesday, September 24, 2014 11:29 AM Subject: [Hallicrafters] SX-99 and plastic dials > My SX-99 came with the plastic dials (date and s/n not handy, sorry). The > dials were somewhat discolored and I didn't think the lettering would > survive cleaning, so I found a set of metal dials that look much better. > I'll just have to relocate the pilot lights from behind to above the > dials, as I recall. Now that I'm supposed to be retired (not exactly by > choice, but will be 62 next year and formally do it then) you would think > I could get around to this, but you would be amazed at how many honey-do's > queue up over the years and now that "I'm too busy" won't work anymore > they pop up to the top of the list :) > > 73! - Mark K9TR > > ______________________________________________________________ > 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 bjcannon at comcast.net Wed Sep 24 16:01:14 2014 From: bjcannon at comcast.net (BILLY) Date: Wed, 24 Sep 2014 20:01:14 +0000 (UTC) Subject: [Hallicrafters] sx16 In-Reply-To: <704965296.27878866.1411588306420.JavaMail.root@comcast.net> Message-ID: <782157185.27884395.1411588874056.JavaMail.root@comcast.net> here goes: i have a sx16, been stored a long time, have cleaned, looked, did some testing with multi-meter etc...now the problem: have found a 1mfd 450 volt cap. has been removed, cannot find one locally, tried to order on from an electronics company, they wanted more info than i could give, someone point me in the right direction? can't go any further. 73 bj From w4bws1 at gmail.com Wed Sep 24 20:01:25 2014 From: w4bws1 at gmail.com (Don Sanders) Date: Wed, 24 Sep 2014 19:01:25 -0500 Subject: [Hallicrafters] sx16 In-Reply-To: <782157185.27884395.1411588874056.JavaMail.root@comcast.net> References: <704965296.27878866.1411588306420.JavaMail.root@comcast.net> <782157185.27884395.1411588874056.JavaMail.root@comcast.net> Message-ID: Check with "Hayseed hamfest". Tom supplies caps for refurbishing many hamradios. Dr. Don W4BWS On Wed, Sep 24, 2014 at 3:01 PM, BILLY wrote: > here goes: i have a sx16, been stored a long time, have cleaned, looked, > did some testing with multi-meter etc...now the problem: have found a 1mfd > 450 volt cap. has been removed, cannot find one locally, tried to order on > from an electronics company, they wanted more info than i could give, > someone point me in the right direction? can't go any further. > 73 > bj > ______________________________________________________________ > 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 k9dtc at comcast.net Wed Sep 24 20:04:24 2014 From: k9dtc at comcast.net (Dan Cotsirilos) Date: Wed, 24 Sep 2014 19:04:24 -0500 Subject: [Hallicrafters] sx16 In-Reply-To: References: <704965296.27878866.1411588306420.JavaMail.root@comcast.net><782157185.27884395.1411588874056.JavaMail.root@comcast.net> Message-ID: <7FABA922A83C4A59BCB672333552F7BA@DanPC> I think he wants to know if it is a electrolytic or axial etc? Dan K9DTC -----Original Message----- From: Don Sanders Sent: Wednesday, September 24, 2014 7:01 PM To: BILLY Cc: hallicrafters at mailman.qth.net Subject: Re: [Hallicrafters] sx16 Check with "Hayseed hamfest". Tom supplies caps for refurbishing many hamradios. Dr. Don W4BWS On Wed, Sep 24, 2014 at 3:01 PM, BILLY wrote: > here goes: i have a sx16, been stored a long time, have cleaned, looked, > did some testing with multi-meter etc...now the problem: have found a 1mfd > 450 volt cap. has been removed, cannot find one locally, tried to order on > from an electronics company, they wanted more info than i could give, > someone point me in the right direction? can't go any further. > 73 > bj > ______________________________________________________________ > 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 rbethman at comcast.net Wed Sep 24 20:44:14 2014 From: rbethman at comcast.net (rbethman) Date: Wed, 24 Sep 2014 20:44:14 -0400 Subject: [Hallicrafters] sx16 In-Reply-To: <7FABA922A83C4A59BCB672333552F7BA@DanPC> References: <704965296.27878866.1411588306420.JavaMail.root@comcast.net><782157185.27884395.1411588874056.JavaMail.root@comcast.net> <7FABA922A83C4A59BCB672333552F7BA@DanPC> Message-ID: <5423655E.30800@comcast.net> Looking at the SX-16 manual, there is "one" 1mfd 400V Electrolytic. It is C46. No other 1mfd capacitors in the entire parts list. It is *possible* that a 1mfd 450V was put in by a previous owner at that location, *or* Hallicrafters simply used a 450V in lieu of the "called for" 400V due to what was *on-hand*. Not exactly an "uncommon" practice when a lot of this equipment was being produced. National did this in the Select-O-ject series of accessories. Where only 200 o 250V B+ was applied, they used a 450V electrolytic. Bob - N0DGN On 9/24/2014 8:04 PM, Dan Cotsirilos wrote: > I think he wants to know if it is a electrolytic or axial etc? > > > > > Dan K9DTC > > > -----Original Message----- From: Don Sanders > Sent: Wednesday, September 24, 2014 7:01 PM > To: BILLY > Cc: hallicrafters at mailman.qth.net > Subject: Re: [Hallicrafters] sx16 > > Check with "Hayseed hamfest". > Tom supplies caps for refurbishing many hamradios. > > Dr. Don W4BWS > > On Wed, Sep 24, 2014 at 3:01 PM, BILLY wrote: > >> here goes: i have a sx16, been stored a long time, have cleaned, looked, >> did some testing with multi-meter etc...now the problem: have found a >> 1mfd >> 450 volt cap. has been removed, cannot find one locally, tried to >> order on >> from an electronics company, they wanted more info than i could give, >> someone point me in the right direction? can't go any further. >> 73 >> bj >> ______________________________________________________________ >> 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 > ______________________________________________________________ > 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 > *-- Bob - N0DGN Sarge/Chief Old cantankerous goat! Non PC and General Nuisance! * From duvallddennis at gmail.com Wed Sep 24 23:19:21 2014 From: duvallddennis at gmail.com (Dennis DuVall) Date: Wed, 24 Sep 2014 20:19:21 -0700 Subject: [Hallicrafters] sx16 In-Reply-To: <5423655E.30800@comcast.net> References: <704965296.27878866.1411588306420.JavaMail.root@comcast.net><782157185.27884395.1411588874056.JavaMail.root@comcast.net> <7FABA922A83C4A59BCB672333552F7BA@DanPC> <5423655E.30800@comcast.net> Message-ID: <07D60E66-8583-40FA-B0FC-D50A25AEC362@gmail.com> Bob, bj, Is it the B+ bypass cap on the primary of the audio xformer driving the audio output amp by any chance? If so, a 8 mfd 450 volt unit was used in the later SX-17 and 8 or 10 mfd would work just fine in the-16 as well. Dennis D. W7QHO Glendale, CA On Sep 24, 2014, at 5:44 PM, rbethman wrote: > Looking at the SX-16 manual, there is "one" 1mfd 400V Electrolytic. It is C46. > > No other 1mfd capacitors in the entire parts list. > > It is *possible* that a 1mfd 450V was put in by a previous owner at that location, *or* Hallicrafters simply used a 450V in lieu of the "called for" 400V due to what was *on-hand*. > > Not exactly an "uncommon" practice when a lot of this equipment was being produced. > > National did this in the Select-O-ject series of accessories. Where only 200 o 250V B+ was applied, they used a 450V electrolytic. > > Bob - N0DGN > > > > On 9/24/2014 8:04 PM, Dan Cotsirilos wrote: >> I think he wants to know if it is a electrolytic or axial etc? >> >> >> >> >> Dan K9DTC >> >> >> -----Original Message----- From: Don Sanders >> Sent: Wednesday, September 24, 2014 7:01 PM >> To: BILLY >> Cc: hallicrafters at mailman.qth.net >> Subject: Re: [Hallicrafters] sx16 >> >> Check with "Hayseed hamfest". >> Tom supplies caps for refurbishing many hamradios. >> >> Dr. Don W4BWS >> >> On Wed, Sep 24, 2014 at 3:01 PM, BILLY wrote: >> >>> here goes: i have a sx16, been stored a long time, have cleaned, looked, >>> did some testing with multi-meter etc...now the problem: have found a 1mfd >>> 450 volt cap. has been removed, cannot find one locally, tried to order on >>> from an electronics company, they wanted more info than i could give, >>> someone point me in the right direction? can't go any further. >>> 73 >>> bj >>> ______________________________________________________________ >>> 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 >> ______________________________________________________________ >> 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 >> > > *-- Bob - N0DGN Sarge/Chief Old cantankerous goat! Non PC and General Nuisance! * > ______________________________________________________________ > 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 25 00:25:52 2014 From: 1oldlens1 at ix.netcom.com (Richard Knoppow) Date: Wed, 24 Sep 2014 21:25:52 -0700 Subject: [Hallicrafters] sx16 References: <704965296.27878866.1411588306420.JavaMail.root@comcast.net><782157185.27884395.1411588874056.JavaMail.root@comcast.net> <7FABA922A83C4A59BCB672333552F7BA@DanPC><5423655E.30800@comcast.net> <07D60E66-8583-40FA-B0FC-D50A25AEC362@gmail.com> Message-ID: <8F5C11E4E4A1480A824FBD141FF679A7@VALUED20606295> ----- Original Message ----- From: "Dennis DuVall" To: "rbethman" ; Cc: Sent: Wednesday, September 24, 2014 8:19 PM Subject: Re: [Hallicrafters] sx16 > Bob, bj, > > Is it the B+ bypass cap on the primary of the audio > xformer driving the audio output amp by any chance? If > so, a 8 mfd 450 volt unit was used in the later SX-17 and > 8 or 10 mfd would work just fine in the-16 as well. > > Dennis D. W7QHO > Glendale, CA That's what it is Dennis. Its not critical as long as its large enough and has a high enough voltage rating. In fact probably a larger cap would work better. -- Richard Knoppow Los Angeles WB6KBL dickburk at ix.netcom.com From hallicrafters at mailman.qth.net Thu Sep 25 04:26:30 2014 From: hallicrafters at mailman.qth.net (Nick via Hallicrafters) Date: Thu, 25 Sep 2014 04:26:30 -0400 Subject: [Hallicrafters] sx16 In-Reply-To: <782157185.27884395.1411588874056.JavaMail.root@comcast.net> References: <782157185.27884395.1411588874056.JavaMail.root@comcast.net> Message-ID: <8D1A6B18AA6B2ED-122C-1454C@webmail-vm117.sysops.aol.com> The original C-46 is a BIG sized paper capacitor rated at 1mfd 400V.Modern replacements can be found at sites like Antique Electronics. However,this cap can be easily replaced by a HIGHER value electrolytic like 8-10mfd 450V cap ,this is just an audio bypass cap .And this is exactly what Hallicrafters did on the later versions of the SX-17's which has identical circuitry to the '16 .Also replace all the other paper caps and electroytics if you haven't already done so.The audio interstage transformer almost always has an OPEN primary thanks to a leaky cap in the TONE circuit lets hope you don't have this problem ! Nick -----Original Message----- From: BILLY To: hallicrafters Sent: Wed, Sep 24, 2014 1:56 pm Subject: [Hallicrafters] sx16 here goes: i have a sx16, been stored a long time, have cleaned, looked, did some testing with multi-meter etc...now the problem: have found a 1mfd 450 volt cap. has been removed, cannot find one locally, tried to order on from an electronics company, they wanted more info than i could give, someone point me in the right direction? can't go any further. 73 bj ______________________________________________________________ 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 rbethman at comcast.net Thu Sep 25 09:38:17 2014 From: rbethman at comcast.net (rbethman) Date: Thu, 25 Sep 2014 09:38:17 -0400 Subject: [Hallicrafters] sx16 In-Reply-To: <07D60E66-8583-40FA-B0FC-D50A25AEC362@gmail.com> References: <704965296.27878866.1411588306420.JavaMail.root@comcast.net><782157185.27884395.1411588874056.JavaMail.root@comcast.net> <7FABA922A83C4A59BCB672333552F7BA@DanPC> <5423655E.30800@comcast.net> <07D60E66-8583-40FA-B0FC-D50A25AEC362@gmail.com> Message-ID: <54241AC9.50009@comcast.net> Dennis, No, C-46 is in the power supply segment. No where even near the P-P audio circuit. Bob - N0DGN On 9/24/2014 11:19 PM, Dennis DuVall wrote: > Bob, bj, > > Is it the B+ bypass cap on the primary of the audio xformer driving the audio output amp by any chance? If so, a 8 mfd 450 volt unit was used in the later SX-17 and 8 or 10 mfd would work just fine in the-16 as well. > > Dennis D. W7QHO > Glendale, CA > > On Sep 24, 2014, at 5:44 PM, rbethman wrote: > >> Looking at the SX-16 manual, there is "one" 1mfd 400V Electrolytic. It is C46. >> >> No other 1mfd capacitors in the entire parts list. >> >> It is *possible* that a 1mfd 450V was put in by a previous owner at that location, *or* Hallicrafters simply used a 450V in lieu of the "called for" 400V due to what was *on-hand*. >> >> Not exactly an "uncommon" practice when a lot of this equipment was being produced. >> >> National did this in the Select-O-ject series of accessories. Where only 200 o 250V B+ was applied, they used a 450V electrolytic. >> >> Bob - N0DGN >> >> >> >> On 9/24/2014 8:04 PM, Dan Cotsirilos wrote: >>> I think he wants to know if it is a electrolytic or axial etc? >>> >>> >>> >>> >>> Dan K9DTC >>> >>> >>> -----Original Message----- From: Don Sanders >>> Sent: Wednesday, September 24, 2014 7:01 PM >>> To: BILLY >>> Cc: hallicrafters at mailman.qth.net >>> Subject: Re: [Hallicrafters] sx16 >>> >>> Check with "Hayseed hamfest". >>> Tom supplies caps for refurbishing many hamradios. >>> >>> Dr. Don W4BWS >>> >>> On Wed, Sep 24, 2014 at 3:01 PM, BILLY wrote: >>> >>>> here goes: i have a sx16, been stored a long time, have cleaned, looked, >>>> did some testing with multi-meter etc...now the problem: have found a 1mfd >>>> 450 volt cap. has been removed, cannot find one locally, tried to order on >>>> from an electronics company, they wanted more info than i could give, >>>> someone point me in the right direction? can't go any further. >>>> 73 >>>> bj >>>> ______________________________________________________________ >>>> 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 >>> ______________________________________________________________ >>> 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 >>> >> *-- Bob - N0DGN Sarge/Chief Old cantankerous goat! Non PC and General Nuisance! * >> ______________________________________________________________ >> 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 > *-- Bob - N0DGN Sarge/Chief Old cantankerous goat! Non PC and General Nuisance! * From K2RJK at VERIZON.NET Thu Sep 25 11:35:33 2014 From: K2RJK at VERIZON.NET (Ray Keefe) Date: Thu, 25 Sep 2014 11:35:33 -0400 Subject: [Hallicrafters] SX100 Help Message-ID: <54243645.4000603@VERIZON.NET> I've got an SX100 Mark2B here. So far I've recapped it, replaced a couple of out of tolerance resistors. Removed and threw away the plug in rectifier replacement after it shorted out and almost cooked the transformer. Used a couple of 1N4004 diodes and a 25watt adjustable wire wound resistor to bring the B+ voltage within range of the schematic. B+is now just about 270+ give or take 2 or 3 volts. It's got distorted audio, had it before I started, believed it was caused by one of the defective Black Beauties. When tuned to a local BCB station 3 miles away, I've got good audio up to T5 C76, on my Heathkit signal tracer it sounds fine. At Pin 8 of V7 it sounds garbled, overloaded, the S meter is also bouncing with the modulation. The voltages are good on V7. The audio stage is ok, fed a audio signal into the phono line and loud and clear from the speaker. V7 tested good on both of my tube testers, don't have sub for it. Pulled it and the audio was still garbled checking the feed to it with the signal tracer. I've removed a couple of mods that someone had done to the standby switch. I've almost ruled out someone mucking with the IF chain, since I can hear AM signals all the way up to 10m, weak, but can still hear them on the signal tracer connected to the pin 2 on T5. The calibration is almost dead on when checked against WWV on 5,10, and 20mhz. Anybody have any ideas on where to look next? Tnx Ray K2RJK From rbethman at comcast.net Thu Sep 25 11:40:39 2014 From: rbethman at comcast.net (rbethman) Date: Thu, 25 Sep 2014 11:40:39 -0400 Subject: [Hallicrafters] sx16 In-Reply-To: <07D60E66-8583-40FA-B0FC-D50A25AEC362@gmail.com> References: <704965296.27878866.1411588306420.JavaMail.root@comcast.net><782157185.27884395.1411588874056.JavaMail.root@comcast.net> <7FABA922A83C4A59BCB672333552F7BA@DanPC> <5423655E.30800@comcast.net> <07D60E66-8583-40FA-B0FC-D50A25AEC362@gmail.com> Message-ID: <54243777.40904@comcast.net> I have NO clue why this went out this morning! It was created last evening. I *do* stand corrected! C-46 is in a network leading from CH1 to T5. T5 is *indeed* the P-P Audio transformer that feeds the pair of 6V6s, which in turn feed T6. Bob - N0DGN On 9/24/2014 11:19 PM, Dennis DuVall wrote: > Bob, bj, > > Is it the B+ bypass cap on the primary of the audio xformer driving the audio output amp by any chance? If so, a 8 mfd 450 volt unit was used in the later SX-17 and 8 or 10 mfd would work just fine in the-16 as well. > > Dennis D. W7QHO > Glendale, CA > > On Sep 24, 2014, at 5:44 PM, rbethman wrote: > >> Looking at the SX-16 manual, there is "one" 1mfd 400V Electrolytic. It is C46. >> >> No other 1mfd capacitors in the entire parts list. >> >> It is *possible* that a 1mfd 450V was put in by a previous owner at that location, *or* Hallicrafters simply used a 450V in lieu of the "called for" 400V due to what was *on-hand*. >> >> Not exactly an "uncommon" practice when a lot of this equipment was being produced. >> >> National did this in the Select-O-ject series of accessories. Where only 200 o 250V B+ was applied, they used a 450V electrolytic. >> >> Bob - N0DGN >> >> >> >> On 9/24/2014 8:04 PM, Dan Cotsirilos wrote: >>> I think he wants to know if it is a electrolytic or axial etc? >>> >>> >>> >>> >>> Dan K9DTC >>> >>> >>> -----Original Message----- From: Don Sanders >>> Sent: Wednesday, September 24, 2014 7:01 PM >>> To: BILLY >>> Cc: hallicrafters at mailman.qth.net >>> Subject: Re: [Hallicrafters] sx16 >>> >>> Check with "Hayseed hamfest". >>> Tom supplies caps for refurbishing many hamradios. >>> >>> Dr. Don W4BWS >>> >>> On Wed, Sep 24, 2014 at 3:01 PM, BILLY wrote: >>> >>>> here goes: i have a sx16, been stored a long time, have cleaned, looked, >>>> did some testing with multi-meter etc...now the problem: have found a 1mfd >>>> 450 volt cap. has been removed, cannot find one locally, tried to order on >>>> from an electronics company, they wanted more info than i could give, >>>> someone point me in the right direction? can't go any further. >>>> 73 >>>> bj >>>> ______________________________________________________________ >>>> 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 >>> ______________________________________________________________ >>> 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 >>> >> *-- Bob - N0DGN Sarge/Chief Old cantankerous goat! Non PC and General Nuisance! * >> ______________________________________________________________ >> 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 > *-- Bob - N0DGN Sarge/Chief Old cantankerous goat! Non PC and General Nuisance! * ______________________________________________________________ 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 hallicrafterssr2000 at k9axn.com Thu Sep 25 16:50:49 2014 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Thu, 25 Sep 2014 15:50:49 -0500 Subject: [Hallicrafters] SX100 Help In-Reply-To: <54243645.4000603@VERIZON.NET> References: <54243645.4000603@VERIZON.NET> Message-ID: <045C5B710EDB42FA93186808C83FDF05@LILESJLAPTOP> Ray, Check T6P2 that is the I.F. output line to the detector. Check the wiring on the AVC circuit on V7 to verify that it is wired exactly as the MARK 2 manual indicates. If you have a signal generator check to see what S-Meter reading produces an S9 reading. The audio on that radio is excellent. Kindest regards Jim K9AXN -----Original Message----- From: Ray Keefe Sent: Thursday, September 25, 2014 10:35 AM To: hallicrafters at mailman.qth.net Subject: [Hallicrafters] SX100 Help I've got an SX100 Mark2B here. So far I've recapped it, replaced a couple of out of tolerance resistors. Removed and threw away the plug in rectifier replacement after it shorted out and almost cooked the transformer. Used a couple of 1N4004 diodes and a 25watt adjustable wire wound resistor to bring the B+ voltage within range of the schematic. B+is now just about 270+ give or take 2 or 3 volts. It's got distorted audio, had it before I started, believed it was caused by one of the defective Black Beauties. When tuned to a local BCB station 3 miles away, I've got good audio up to T5 C76, on my Heathkit signal tracer it sounds fine. At Pin 8 of V7 it sounds garbled, overloaded, the S meter is also bouncing with the modulation. The voltages are good on V7. The audio stage is ok, fed a audio signal into the phono line and loud and clear from the speaker. V7 tested good on both of my tube testers, don't have sub for it. Pulled it and the audio was still garbled checking the feed to it with the signal tracer. I've removed a couple of mods that someone had done to the standby switch. I've almost ruled out someone mucking with the IF chain, since I can hear AM signals all the way up to 10m, weak, but can still hear them on the signal tracer connected to the pin 2 on T5. The calibration is almost dead on when checked against WWV on 5,10, and 20mhz. Anybody have any ideas on where to look next? Tnx Ray K2RJK ______________________________________________________________ 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 radio at daileyservices.com Thu Sep 25 17:21:31 2014 From: radio at daileyservices.com (radio at daileyservices.com) Date: Thu, 25 Sep 2014 15:21:31 -0600 Subject: [Hallicrafters] Hallicrafters Digest, Vol 128, Issue 7 References: Message-ID: replace the caps... it's a modern mantra that should ALWAYS be followed. Old story with BBOD's (Black Beauties of Death) - if they're not shorted NOW, they WILL be. Tom --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com From jeff at podengo.com Sat Sep 27 12:21:46 2014 From: jeff at podengo.com (Jeff) Date: Sat, 27 Sep 2014 12:21:46 -0400 Subject: [Hallicrafters] HT-32A finals resting current Message-ID: <5426E41A.2050807@podengo.com> Does anyone know what the resting current (standby) should be for 6293s in an HT-32A? I recently put solid state rectifiers in the rig, lifting the 5V filaments out (original transformer, and I'd like to keep it that way.) Obviously voltages are higher throughout, but so far, no problems. I have a meter on the HV line right now, and have the bias set for about 52 mA at rest (standby position), 250 mA at 100 watts carrier. I increased the value of the resistor in series with the bias pot (R62) to give me more control over the resting current Before doing this, the lowest I could get the bias current was around 80 mA. I'm using the 50-60 mA range based upon all the rest of my hollow state gear, so I'd appreciate anyone's more learned advice. Jeff WB3JIH From rbethman at comcast.net Sat Sep 27 14:40:03 2014 From: rbethman at comcast.net (rbethman) Date: Sat, 27 Sep 2014 14:40:03 -0400 Subject: [Hallicrafters] HT-32A finals resting current In-Reply-To: <5426E41A.2050807@podengo.com> References: <5426E41A.2050807@podengo.com> Message-ID: <54270483.7020906@comcast.net> Jeff, I'd have to break out the manual, but I never did the SS of the power supply. I do know the bias on the HT-37 was 49V. What you need for 6293s, I have no idea at all. Bob - N0DGN On 9/27/2014 12:21 PM, Jeff wrote: > Does anyone know what the resting current (standby) should be for > 6293s in an HT-32A? > > I recently put solid state rectifiers in the rig, lifting the 5V > filaments out (original transformer, and I'd like to keep it that > way.) Obviously voltages are higher throughout, but so far, no problems. > > I have a meter on the HV line right now, and have the bias set for > about 52 mA at rest (standby position), 250 mA at 100 watts carrier. > I increased the value of the resistor in series with the bias pot > (R62) to give me more control over the resting current Before doing > this, the lowest I could get the bias current was around 80 mA. I'm > using the 50-60 mA range based upon all the rest of my hollow state > gear, so I'd appreciate anyone's more learned advice. > > Jeff > WB3JIH From wilson_curtis at msn.com Sat Sep 27 14:42:26 2014 From: wilson_curtis at msn.com (Wilson Curtis) Date: Sat, 27 Sep 2014 15:42:26 -0300 Subject: [Hallicrafters] Radio Trivia Message-ID: To the List: Getting to the age where one feels compelled to pass along any info others might find interesting. 1) A mnemonic re the standard color code of the electronics industry: Bad - Black (0), Boys - Brown (1), Rape - Red (2), Our - Orange (3), Young - Yellow (4), Girls - Green (5), But - Blue (6) Violet- Violet (7), Goes - Gray (8), Willingly - White (9). Not politically correct but this came from and earlier and simpler time. 2) The old US Army electronics coding: Some 40 years ago, in a magazine that has been long since ceased publication, a reader sent in a chart of the various codes. The ones I remember go as follows: a) The BC designation as in the BC- 348 receiver. The BC stands for Basic Component. b) The SCR designation as in SCR-299 transmitter. S = Section, C = Combat & R = Radio. c) The later PRC series as in the PRC - 10, 25 & 75 goes P= Personnel, R = Radio and C = Combat. d) I think the ART - 13 transmitter is A = Airborne (aircraft), R = Radio, & T = transmitter. It has been common to hear people referring to an SCR unit as Signal Corps Radio. Would it were so, but who has ever seen the military make things simple or easy. 3) The system used by the US Navy, the three letter designation as in RDO, has no rhyme nor reason as far as I could see. Hope some find this useful. Reg Curtis - VE9RWC/KB1WCP From karinann at tampabay.rr.com Sat Sep 27 14:44:40 2014 From: karinann at tampabay.rr.com (Karin Johnson) Date: Sat, 27 Sep 2014 14:44:40 -0400 Subject: [Hallicrafters] HT-32A finals resting current Message-ID: <218369F6D1FC40D79400DAB2C3DBA8CF@karinspc> Hi Jeff: Saw your post on the Hallicrafters list. It is somewhat subjective given that the datasheet for the 6293 doesn't give much information about this tube's use in amplifier service. If you make some assumptions that this tube is somewhat comparable to the 6146B then that datasheet gives a resting current of 25 ma with 750 volts on the plate and 200 volts on the screen. In the HT-32A and B the finals are not really completely cutoff when not in transmit mode, so the resting current is there all the time. I have a simulation program I helped write that can be used to design linear RF amplifiers based on the EIMAC tube calculator. I did some experimenting with different values of bias voltages with this program and it doesn't really make too much difference from Idle currents ranging from 20 ma for both tubes, up to as much as 80 ma for both tubes. There are some other esoteric side effects too, like change in tube output impedance which could affect the efficiency of the finals. I don't believe it is something to really worry about though. Of course the down side to higher idle current is more heat generated if you're not in transmit mode. 50 ma sounds about right given the value from the 6146B and 6146A datasheets. Using the -49 volt setting described in the instruction manual would only be really usable if the line voltage was within limits given the original instruction manual, and the original tube set (ie: 5R4GY HV rectifier) were in place. Karin Anne Johnson K3UU Palm Harbor, FL From k9cox at charter.net Sat Sep 27 14:53:57 2014 From: k9cox at charter.net (k9cox at charter.net) Date: Sat, 27 Sep 2014 18:53:57 +0000 Subject: [Hallicrafters] =?utf-8?q?Radio_Trivia?= In-Reply-To: References: Message-ID: Where can I find Violet now a days? Sent from Windows Mail From: Wilson Curtis Sent: ?Saturday?, ?September? ?27?, ?2014 ?1?:?42? ?PM To: hallicrafters at mailman.qth.net To the List: Getting to the age where one feels compelled to pass along any info others might find interesting. 1) A mnemonic re the standard color code of the electronics industry: Bad - Black (0), Boys - Brown (1), Rape - Red (2), Our - Orange (3), Young - Yellow (4), Girls - Green (5), But - Blue (6) Violet- Violet (7), Goes - Gray (8), Willingly - White (9). Not politically correct but this came from and earlier and simpler time. 2) The old US Army electronics coding: Some 40 years ago, in a magazine that has been long since ceased publication, a reader sent in a chart of the various codes. The ones I remember go as follows: a) The BC designation as in the BC- 348 receiver. The BC stands for Basic Component. b) The SCR designation as in SCR-299 transmitter. S = Section, C = Combat & R = Radio. c) The later PRC series as in the PRC - 10, 25 & 75 goes P= Personnel, R = Radio and C = Combat. d) I think the ART - 13 transmitter is A = Airborne (aircraft), R = Radio, & T = transmitter. It has been common to hear people referring to an SCR unit as Signal Corps Radio. Would it were so, but who has ever seen the military make things simple or easy. 3) The system used by the US Navy, the three letter designation as in RDO, has no rhyme nor reason as far as I could see. Hope some find this useful. Reg Curtis - VE9RWC/KB1WCP From w5jo at brightok.net Sat Sep 27 15:58:07 2014 From: w5jo at brightok.net (Jim Wilhite) Date: Sat, 27 Sep 2014 14:58:07 -0500 Subject: [Hallicrafters] HT-32A finals resting current In-Reply-To: <218369F6D1FC40D79400DAB2C3DBA8CF@karinspc> References: <218369F6D1FC40D79400DAB2C3DBA8CF@karinspc> Message-ID: <12F157CD79344040A12DE9E15B4CDBAA@JimPC> If memory serves the 6293 is a pulse rated 6146. Jim W5JO -----Original Message----- Hi Jeff: Saw your post on the Hallicrafters list. It is somewhat subjective given that the datasheet for the 6293 doesn't give much information about this tube's use in amplifier service. If you make some assumptions that this tube is somewhat comparable to the 6146B then that datasheet gives a resting current of 25 ma with 750 volts on the plate and 200 volts on the screen. In the HT-32A and B the finals are not really completely cutoff when not in transmit mode, so the resting current is there all the time. I have a simulation program I helped write that can be used to design linear RF amplifiers based on the EIMAC tube calculator. I did some experimenting with different values of bias voltages with this program and it doesn't really make too much difference from Idle currents ranging from 20 ma for both tubes, up to as much as 80 ma for both tubes. There are some other esoteric side effects too, like change in tube output impedance which could affect the efficiency of the finals. I don't believe it is something to really worry about though. Of course the down side to higher idle current is more heat generated if you're not in transmit mode. 50 ma sounds about right given the value from the 6146B and 6146A datasheets. Using the -49 volt setting described in the instruction manual would only be really usable if the line voltage was within limits given the original instruction manual, and the original tube set (ie: 5R4GY HV rectifier) were in place. From duvallddennis at gmail.com Sat Sep 27 16:30:38 2014 From: duvallddennis at gmail.com (Dennis DuVall) Date: Sat, 27 Sep 2014 13:30:38 -0700 Subject: [Hallicrafters] HT-32A finals resting current In-Reply-To: <12F157CD79344040A12DE9E15B4CDBAA@JimPC> References: <218369F6D1FC40D79400DAB2C3DBA8CF@karinspc> <12F157CD79344040A12DE9E15B4CDBAA@JimPC> Message-ID: <39FDDFBE-736F-4D58-9A7E-9E0E54CB00A1@gmail.com> Sibley (Tube Lore) agrees?.. Dennis D. W7QHO Glendale, CA On Sep 27, 2014, at 12:58 PM, "Jim Wilhite" wrote: > If memory serves the 6293 is a pulse rated 6146. > Jim > W5JO > From manualman at juno.com Sat Sep 27 16:55:55 2014 From: manualman at juno.com (manualman at juno.com) Date: Sat, 27 Sep 2014 16:55:55 -0400 Subject: [Hallicrafters] Radio Trivia Message-ID: RDO ~ RADIO Pete, wa2cwa On Sat, 27 Sep 2014 15:42:26 -0300 Wilson Curtis writes: >> 3) The system used by the US Navy, the three letter designation as > in RDO, has no rhyme nor reason as far as I could see. > Hope some find this useful. > Reg Curtis - VE9RWC/KB1WCP From dhallam at knology.net Sat Sep 27 17:20:49 2014 From: dhallam at knology.net (David C. Hallam) Date: Sat, 27 Sep 2014 17:20:49 -0400 Subject: [Hallicrafters] HT-32A finals resting current In-Reply-To: <5426E41A.2050807@podengo.com> References: <5426E41A.2050807@podengo.com> Message-ID: <54272A31.7040705@knology.net> I would believe 50 mA is about right for the pair. If you are really concerned about it, you could run a test. Using a dummy load apply a two tone signal of about 4 mA rms to the microphone connector and tune for full output. Look at the output on a scope while you vary the finals' bias. You should be able to easily see the effect of bias voltage on your two tone signal. David KW4DH On 9/27/2014 12:21 PM, Jeff wrote: > Does anyone know what the resting current (standby) should be for > 6293s in an HT-32A? > > I recently put solid state rectifiers in the rig, lifting the 5V > filaments out (original transformer, and I'd like to keep it that > way.) Obviously voltages are higher throughout, but so far, no problems. > > I have a meter on the HV line right now, and have the bias set for > about 52 mA at rest (standby position), 250 mA at 100 watts carrier. > I increased the value of the resistor in series with the bias pot > (R62) to give me more control over the resting current Before doing > this, the lowest I could get the bias current was around 80 mA. I'm > using the 50-60 mA range based upon all the rest of my hollow state > gear, so I'd appreciate anyone's more learned advice. > > Jeff > WB3JIH > > ______________________________________________________________ > 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 > -- "I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them." Thomas Jefferson --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com From k9sth at sbcglobal.net Sat Sep 27 18:43:27 2014 From: k9sth at sbcglobal.net (Glen Zook) Date: Sat, 27 Sep 2014 15:43:27 -0700 Subject: [Hallicrafters] HT-32A finals resting current In-Reply-To: <54272A31.7040705@knology.net> References: <5426E41A.2050807@podengo.com> <54272A31.7040705@knology.net> Message-ID: <1411857807.35588.YahooMailNeo@web181301.mail.ne1.yahoo.com> The 6293 is NOT an equivalent of the 6146B/8298A. It is basically a 6146A/8298 with a heavier plate that allows 1000-watts peak input power as a pulse modulator. Idling plate current should be 40 mA. You can increase the idling plate current to 50 mA if you are driving a linear amplifier. When run at the same parameters as a 6146 or 6146A/8298, the 6293 will typically last at least 5-times as long as the 6146 or 6146A/8298. In fact, even longer life is not unusual. Glen, K9STH website: http://k9sth.net On Saturday, September 27, 2014 4:20 PM, David C. Hallam wrote: I would believe 50 mA is about right for the pair. If you are really concerned about it, you could run a test. Using a dummy load apply a two tone signal of about 4 mA rms to the microphone connector and tune for full output. Look at the output on a scope while you vary the finals' bias. You should be able to easily see the effect of bias voltage on your two tone signal. David KW4DH On 9/27/2014 12:21 PM, Jeff wrote: > Does anyone know what the resting current (standby) should be for > 6293s in an HT-32A? > > I recently put solid state rectifiers in the rig, lifting the 5V > filaments out (original transformer, and I'd like to keep it that > way.) Obviously voltages are higher throughout, but so far, no problems. > > I have a meter on the HV line right now, and have the bias set for > about 52 mA at rest (standby position), 250 mA at 100 watts carrier. > I increased the value of the resistor in series with the bias pot > (R62) to give me more control over the resting current Before doing > this, the lowest I could get the bias current was around 80 mA. I'm > using the 50-60 mA range based upon all the rest of my hollow state > gear, so I'd appreciate anyone's more learned advice. > > Jeff > WB3JIH > > ______________________________________________________________ > 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 > -- "I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them." Thomas Jefferson --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ______________________________________________________________ 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 radio at daileyservices.com Sat Sep 27 19:19:48 2014 From: radio at daileyservices.com (radio at daileyservices.com) Date: Sat, 27 Sep 2014 17:19:48 -0600 Subject: [Hallicrafters] Color Code References: Message-ID: <3EFE4278A79A4E168201C9315B1A8942@w0eaj> Yes, it's similar to the one I learned aboard ship, PRIOR to going to Electronics Technician "A" school at Treasure Island - sub the word "gives" for "goes", and you forgot the tolerance bands - Get = Gold (5%); Some=Silver(10%); Now=No color(20%). TC Dailey - W0EAJ- RMC USN --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com From rkolarik at neb.rr.com Sat Sep 27 19:37:02 2014 From: rkolarik at neb.rr.com (Ron Kolarik) Date: Sat, 27 Sep 2014 18:37:02 -0500 Subject: [Hallicrafters] Radio Trivia In-Reply-To: References: Message-ID: <54274A1E.90004@neb.rr.com> Try the nearest assisted living facility......she's either there or Forest Lawn :) Ron K0IDT On 9/27/2014 1:53 PM, k9cox at charter.net wrote: > Where can I find Violet now a days? > > > > > > > From k9dtc at comcast.net Tue Sep 30 14:10:12 2014 From: k9dtc at comcast.net (Dan Cotsirilos) Date: Tue, 30 Sep 2014 13:10:12 -0500 Subject: [Hallicrafters] OFF TOPIC NATIONAL NC-190 Message-ID: Anyone in the Chicago area interested in a NC-190 that is not very nice? $25 for parts or complete restoration. Dan K9DTC

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