From petef at sprynet.com Tue Mar 1 02:10:37 2016 From: petef at sprynet.com (Pete Ferrand) Date: Tue, 1 Mar 2016 01:10:37 -0600 (GMT-06:00) Subject: [Hallicrafters] TO schematic Message-ID: <12590339.1456816237367.JavaMail.root@elwamui-mouette.atl.sa.earthlink.net> Hi Roy, it's been years, but, where and how would a single contact key jack be added to the circuit? tnx es 73, -Pete WB2QLL Mount Pleasant, WI > >Here are a few of notes on the thing, and I?ll send my full notes file separately to you off list with some further information and gathered posts. I also will send a nice picture of W9TO himself as a rather young ham with really really period equipment. From elespe at lisco.com Tue Mar 1 11:54:11 2016 From: elespe at lisco.com (Paul Kraemer) Date: Tue, 1 Mar 2016 10:54:11 -0600 Subject: [Hallicrafters] TO schematic In-Reply-To: References: Message-ID: Thanks to all who helped me getting a manual for the keyer Paul K0UYA -----Original Message----- From: Paul Kraemer Sent: Monday, February 29, 2016 5:54 PM To: Hallicrafters Subject: [Hallicrafters] TO schematic Anyone have a link to a schematic of the TO keyer? Or copy they would share? I have keyer but doesn?t do anything except the tubes light Would like to try to fix it Any help appreciated Thanks Paul K0UYA ______________________________________________________________ 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 w5jv at hotmail.com Tue Mar 1 13:07:20 2016 From: w5jv at hotmail.com (Doug Hensley) Date: Tue, 1 Mar 2016 18:07:20 +0000 Subject: [Hallicrafters] Square/Rectangular Feet for HT-33, SX-101, etc. Message-ID: Someone was looking for feet for their large Hallicrafters. Check out: http://www.mcmaster.com/#bumper-spacers/=11conu2 Best service in the industry for common items. Doug W5JV From radio at daileyservices.com Tue Mar 1 18:13:38 2016 From: radio at daileyservices.com (radio at daileyservices.com) Date: Tue, 1 Mar 2016 16:13:38 -0700 Subject: [Hallicrafters] speaking of isolation xfmrs. References: Message-ID: I have ONE genuine isolation xfmr on the "end" of my Variac, but wanted more, in spite of the astronomical prices, often asked for 'em. As I'm in the commercial fire alarm biz, I often get extra 28vac xfmrs when I replace a control panel board, that doesn't need a new xfmr. Thus - connected back-to-back, with the 28vac windings together, the 117vac input/output gives you what you came looking for. Oh, and don't connect the grounds, as it's "ISOLATION" you want. Typical ratings for these units is anywhere from 5 to 10+ amps, so the xfmrs will handle just about any radio... and the Price is Right. Note: I've even connected a couple in a "bucking" arrangement, which lowers the line voltage for older radios. Tom - W0EAJ --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com From elespe at lisco.com Wed Mar 2 15:23:35 2016 From: elespe at lisco.com (Paul Kraemer) Date: Wed, 2 Mar 2016 14:23:35 -0600 Subject: [Hallicrafters] Roy Morgan email Message-ID: Roy I have the CQ article you wanted scanned but lost your email address Paul K0UYA From venchant at hotmail.com Sat Mar 5 15:14:59 2016 From: venchant at hotmail.com (Venchant .) Date: Sat, 5 Mar 2016 14:14:59 -0600 Subject: [Hallicrafters] Mail server change Message-ID: My ISP is terminating their POP3 mail services, so pardon the test mail while I get lists converted to the new (actually 20+ year old) address. Mark K9TR From mark.k3msb at gmail.com Mon Mar 14 20:38:42 2016 From: mark.k3msb at gmail.com (Mark K3MSB) Date: Mon, 14 Mar 2016 20:38:42 -0400 Subject: [Hallicrafters] HT-37 VOX Relay Message-ID: I?m working on an HT-37 transmitter donated to our radio club. The VOX Relay RY1 wants to close when I change the function switch from STBY to MOX and I can see it move, but it will not travel far enough to close the contacts. R69 Is OK, and I measured the RY1 coil resistance to be 9.5K. The various voltage drops across R69 and the coil when the radio is in the MOX position show a current of 5 Ma. Specifically, the voltage drop across the 9.5K coil is 52V yielding 5 mA. I have no idea if these numbers are correct, but the current seem pretty small. The ?Relay Tube? V15B tested good, and I used a replacement with no difference in relay action. Measured voltages on VR15-1: 278/196, and VR15-3 5.6/1.7 (STBY/MOX). There are in the ballpark. I tested all the tubes etc, played musical tubes a while, cleaned the relay coil (bottom) with DeOxit, adjust the screw adjustment on the coil bottom etc. Nothing helped the relay to perform as expected. Also, the 0A2 VR tube will not light. I tried 2 tubes (tested OK in a tester) and both show about 150V on pins 1 and 5 as expected. With the OA2 removed, pin 5 is 187V. It looks to be regulating, but I?d expect to see some glow. The bias measured at TP-2 is -49V. Comments welcomed; I?m concerned RY1 is bad. 73 Mark K3MSB From kc9cdt at aol.com Mon Mar 14 21:32:33 2016 From: kc9cdt at aol.com (kc9cdt at aol.com) Date: Mon, 14 Mar 2016 21:32:33 -0400 Subject: [Hallicrafters] HT-37 VOX Relay In-Reply-To: References: Message-ID: <15377e7317c-301b-cff4@webprd-a04.mail.aol.com> Mark, This is rare...but I had a strange issue back when I worked on IBM equip. There was a very small sliver of metal (who knows where from) laying in he vicinity of the coil on the relay. When the pick current came on the sliver would stick up a little & block the armature from pulling in all the way. Cleaned the area between the coli & armature while holding the armature in manually...problem solved. Clean that area ..its worth a remote chance it will help. And yes when I manually pushed on the armature it felt fine...BUT when the magnet came on...the sliver would stand up. One of many difficult problems I had to fix in the many years working on complex IBM equipment Good luck. 73, Lee -----Original Message----- From: Mark K3MSB To: Boatanchors List ; List Hallicrafters Sent: Mon, Mar 14, 2016 8:50 pm Subject: [Hallicrafters] HT-37 VOX Relay I?m working on an HT-37 transmitter donated to our radio club.The VOX Relay RY1 wants to close when I change the function switch fromSTBY to MOX and I can see it move, but it will not travel far enough toclose the contacts.R69 Is OK, and I measured the RY1 coil resistance to be 9.5K. The variousvoltage drops across R69 and the coil when the radio is in the MOX positionshow a current of 5 Ma.Specifically, the voltage drop across the 9.5K coil is 52V yielding 5 mA. Ihave no idea if these numbers are correct, but the current seem prettysmall.The ?Relay Tube? V15B tested good, and I used a replacement with nodifference in relay action.Measured voltages on VR15-1: 278/196, and VR15-3 5.6/1.7(STBY/MOX). Thereare in the ballpark.I tested all the tubes etc, played musical tubes a while, cleaned therelay coil (bottom) with DeOxit, adjust the screw adjustment on the coilbottom etc. Nothing helped the relay to perform as expected.Also, the 0A2 VR tube will not light. I tried 2 tubes (tested OK in atester) and both show about 150V on pins 1 and 5 as expected. With theOA2 removed, pin 5 is 187V. It looks to be regulating, but I?d expect tosee some glow.The bias measured at TP-2 is -49V.Comments welcomed; I?m concerned RY1 is bad.73 Mark K3MSB______________________________________________________________Hallicrafters mailing listHome: http://mailman.qth.net/mailman/listinfo/hallicraftersHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:Hallicrafters at mailman.qth.netList Administrator: Duane Fischer, W8DBF** For Assistance: dfischer at usol.com **This list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.html From mark.k3msb at gmail.com Tue Mar 15 19:34:44 2016 From: mark.k3msb at gmail.com (Mark K3MSB) Date: Tue, 15 Mar 2016 19:34:44 -0400 Subject: [Hallicrafters] HT-37 VOX Relay In-Reply-To: References: Message-ID: Well, good news. Mostly?.. I measured the resistances on V15B-3 and they were pretty close with the bandswitch in the STBY or MOX positions. That indicated R51 and R52 were OK. Sometimes the resistance didn?t change, but would after cycling the switch. Unfortunately, the switch contacts are in the SSB subchassis and I don?t feel like pulling it out. I then removed the tube and, with the switch in the MOX position, grounded V15-1. The relay opened and closed nicely. I then reinserted the tube. The filament voltage on pin 6 was only 6 V, and I remembered I had the transmitter powered up to only 115V off the variac. I upped it to 120V and the heater voltage was 6.3V. Cycling the function switch between MOX and STBY sometimes causes the relay to close, sometimes not. When not, a slight ?thump? on the relay will close it. I think those switches need a good cleaning. Still looking into the OA2 issue?.. Mark K3MSB On Mon, Mar 14, 2016 at 8:38 PM, Mark K3MSB wrote: > I?m working on an HT-37 transmitter donated to our radio club. > > > > The VOX Relay RY1 wants to close when I change the function switch from > STBY to MOX and I can see it move, but it will not travel far enough to > close the contacts. > > > > R69 Is OK, and I measured the RY1 coil resistance to be 9.5K. The > various voltage drops across R69 and the coil when the radio is in the MOX > position show a current of 5 Ma. > > > > Specifically, the voltage drop across the 9.5K coil is 52V yielding 5 mA. > I have no idea if these numbers are correct, but the current seem pretty > small. > > > > The ?Relay Tube? V15B tested good, and I used a replacement with no > difference in relay action. > > > > Measured voltages on VR15-1: 278/196, and VR15-3 5.6/1.7 (STBY/MOX). > There are in the ballpark. > > > > I tested all the tubes etc, played musical tubes a while, cleaned the > relay coil (bottom) with DeOxit, adjust the screw adjustment on the coil > bottom etc. Nothing helped the relay to perform as expected. > > > > Also, the 0A2 VR tube will not light. I tried 2 tubes (tested OK in a > tester) and both show about 150V on pins 1 and 5 as expected. With the > OA2 removed, pin 5 is 187V. It looks to be regulating, but I?d expect > to see some glow. > > > > The bias measured at TP-2 is -49V. > > > > Comments welcomed; I?m concerned RY1 is bad. > > > 73 Mark K3MSB > From aquinn50 at tx.rr.com Sat Mar 19 20:37:29 2016 From: aquinn50 at tx.rr.com (Anthony Quinn) Date: Sat, 19 Mar 2016 19:37:29 -0500 Subject: [Hallicrafters] SX-28 FCC Schematic Message-ID: <000a01d18240$af2e73f0$0d8b5bd0$@tx.rr.com> Good evening - I am attempting to restore a badly butchered sx-28 FCC Model. Perusing the list many years ago someone named goldsmith from Australia offered a copy of a technical manual and schematic. His email from that message is now dead. Does anyone have a schematic/manual or know of Mr Goldsmith's current email address. From 1oldlens1 at ix.netcom.com Sun Mar 20 01:12:10 2016 From: 1oldlens1 at ix.netcom.com (Richard Knoppow) Date: Sat, 19 Mar 2016 22:12:10 -0700 Subject: [Hallicrafters] SX-28 FCC Schematic In-Reply-To: <000a01d18240$af2e73f0$0d8b5bd0$@tx.rr.com> References: <000a01d18240$af2e73f0$0d8b5bd0$@tx.rr.com> Message-ID: <56EE312A.9070902@ix.netcom.com> Perhaps Brian Goldsmith who hangs out on the RCA Equipment list. brian at flex-tel.com.au On 3/19/2016 5:37 PM, Anthony Quinn wrote: > Good evening - I am attempting to restore a badly butchered sx-28 FCC Model. > Perusing the list many years ago someone named goldsmith from Australia > offered a copy of a technical manual and schematic. His email from that > message is now dead. Does anyone have a schematic/manual or know of Mr > Goldsmith's current email address. > > > > ______________________________________________________________ > 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 > -- Richard Knoppow 1oldlens1 at ix.netcom.com WB6KBL From alf_fisher at tiscali.co.uk Sun Mar 20 06:04:07 2016 From: alf_fisher at tiscali.co.uk (Alf Fisher) Date: Sun, 20 Mar 2016 10:04:07 -0000 Subject: [Hallicrafters] SX-28 FCC Schematic In-Reply-To: <000a01d18240$af2e73f0$0d8b5bd0$@tx.rr.com> References: <000a01d18240$af2e73f0$0d8b5bd0$@tx.rr.com> Message-ID: <0E749336FFD348BF9F7959DA3C2EE997@ALFHome> Hi Anthony, Have you looked at BAMA? I have to admit that I dont know how the FCC model differs from the others but there is a whole bunch of manuals for SX-28. See: http://bama.edebris.com/manuals/hallicra/ 73 Alf G3WSD -----Original Message----- From: Anthony Quinn Sent: Sunday, March 20, 2016 12:37 AM To: hallicrafters at mailman.qth.net Subject: [Hallicrafters] SX-28 FCC Schematic Good evening - I am attempting to restore a badly butchered sx-28 FCC Model. Perusing the list many years ago someone named goldsmith from Australia offered a copy of a technical manual and schematic. His email from that message is now dead. Does anyone have a schematic/manual or know of Mr Goldsmith's current email address. ______________________________________________________________ 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 Tue Mar 22 15:39:56 2016 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Tue, 22 Mar 2016 14:39:56 -0500 Subject: [Hallicrafters] SR-2000 1971 band switch schematic Message-ID: There has been some confusion regarding the wiring of the newest (1971) final band switch for the SR-2000. http://k9axn.com/_mgxroot/page_10892.html is a photo of the switch and schematic describing the change. Kindest regards Jim k9AXN From k9cox at charter.net Tue Mar 22 17:36:23 2016 From: k9cox at charter.net (Ross Stenberg) Date: Tue, 22 Mar 2016 16:36:23 -0500 Subject: [Hallicrafters] SR-2000 1971 band switch schematic In-Reply-To: References: Message-ID: And it took you 45 years to tell us about it?just kidding. 73 Ross K9COX Sent from Mail for Windows 10 From: Jim Liles Sent: Tuesday, March 22, 2016 2:39 PM To: hallicrafters at mailman.qth.net Subject: [Hallicrafters] SR-2000 1971 band switch schematic There has been some confusion regarding the wiring of the newest (1971) final band switch for the SR-2000. http://k9axn.com/_mgxroot/page_10892.html is a photo of the switch and schematic describing the change. Kindest regards Jim k9AXN From hallicrafterssr2000 at k9axn.com Tue Mar 22 19:53:22 2016 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Tue, 22 Mar 2016 18:53:22 -0500 Subject: [Hallicrafters] SR-2000 1971 band switch schematic In-Reply-To: References: Message-ID: <7DF8B79A4BD54CE1A2C588AFB094482D@LILESJLAPTOP> Good evening Ross, Good to hear from you and nice to hear a familiar voice. The band switch has been posted on the Hallicrafters lists for some time now. For a while this list didn't work. Everything was bounced but heard from some of the guys it was in operation so posted. I am working with a fellow that rebuilt the final compartment and needed to do a complete rewire. The schematic for the new band switch is accurate but confusing and being a rather high power amp he was a bit unsettled. So, I integrated it into the most current schematic for clarity. BTW, I've backed away from restoration so I can finish the web site --- It's lingered for 10 years --- about time eh? Looking for a tech that is willing to take the SR-2000 work ---- any interest? Again good to hear from you Ross --- Kindest regards Jim K9AXN -----Original Message----- From: Ross Stenberg Sent: Tuesday, March 22, 2016 4:36 PM To: Jim Liles ; hallicrafters at mailman.qth.net Subject: RE: [Hallicrafters] SR-2000 1971 band switch schematic And it took you 45 years to tell us about it?just kidding. 73 Ross K9COX Sent from Mail for Windows 10 From: Jim Liles Sent: Tuesday, March 22, 2016 2:39 PM To: hallicrafters at mailman.qth.net Subject: [Hallicrafters] SR-2000 1971 band switch schematic There has been some confusion regarding the wiring of the newest (1971) final band switch for the SR-2000. http://k9axn.com/_mgxroot/page_10892.html is a photo of the switch and schematic describing the change. Kindest regards Jim k9AXN From aquinn50 at tx.rr.com Fri Mar 25 06:35:59 2016 From: aquinn50 at tx.rr.com (Anthony Quinn) Date: Fri, 25 Mar 2016 05:35:59 -0500 Subject: [Hallicrafters] Oscillator Section SX 28 Message-ID: <001001d18682$1f404070$5dc0c150$@tx.rr.com> Have a number of rat-chewed coils so am looking for a replacement for the SX-28(not A) oscillator section. Anyone have a replacement beating around in their parts drawer? Thanks From brian at flex-tel.com.au Fri Mar 25 19:18:14 2016 From: brian at flex-tel.com.au (Brian Goldsmith) Date: Fri, 25 Mar 2016 23:18:14 +0000 Subject: [Hallicrafters] SX28 FCC manual. Message-ID: -----Original Message----- From: "Anthony Quinn" Good evening - I am attempting to restore a badly butchered sx-28 FCC Model. Perusing the list many years ago someone named goldsmith from Australia offered a copy of a technical manual and schematic. His email from that message is now dead. Does anyone have a schematic/manual or know of Mr Goldsmith's current email address. ******FCC manual sent to Anthony,Brian G. From anchor at ec.rr.com Fri Mar 25 19:34:06 2016 From: anchor at ec.rr.com (Al Parker) Date: Fri, 25 Mar 2016 19:34:06 -0400 Subject: [Hallicrafters] S-210 manual Message-ID: <56F5CAEE.20102@ec.rr.com> Hi, Does anyone have an S-210 manual in digi-form, or that's copyable on paper, and available for a fee? I've been working on one (not much work) for a friend. It was his father's radio, but he doesn't have a manual, and none seems to be available (free) anywhere on line. The rcvr was only built for about a yr, it seems, so not many around. It has 6 bands, AM bcst, FM bcst, and 4 SW bcst. No ham bands or BFO. After replacing the 4-section filter cap to eliminate the hum, and 2 other caps, it's working quite well. No paper tubulars in it, mostly disc ceramics, one black beauty (a bit leaky) and one 10 at 25v electrolytic (very bad). tnx, 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 From brian at flex-tel.com.au Sat Mar 26 00:43:08 2016 From: brian at flex-tel.com.au (Brian Goldsmith) Date: Sat, 26 Mar 2016 04:43:08 +0000 Subject: [Hallicrafters] SX28 FCC manual. In-Reply-To: References: Message-ID: From: Chuck Would you have any information on FCC SX-28 receivers equipped with a narrow band second IF strip from McLoughlin Engineering ? I understand these were made to fill a requirement for steep IF skirts for interference rejection, while preserving the high frequency content of spoken Japanese. Some of these units may have found their way to Australia during the early 1940's. I am also seeking information on the US Navy version SX-28, CHL-46195 which was used in the RBY panoramic receiver during the same time frame. I have one of these radios on my bench. *****Alas,Chuck,no further information is in my possession,good luck with your quest. Regards,brian g.

This page last updated 23 Nov 2017.