From bjcannon at comcast.net Thu Jul 2 17:04:18 2015 From: bjcannon at comcast.net (b.j. cannon) Date: Thu, 2 Jul 2015 17:04:18 -0400 Subject: [Hallicrafters] HT-9 Message-ID: <002701d0b50a$aa2c1320$fe843960$@comcast.net> Good afternoon greg: Searching for info on ht9, found your post from several years back: wondering if you still have either one or both. I have been bitten by this monster, have a sx16 ready to "sleep" with one..that is complete, or that I may use for parts to correct the one I have.coils/cans/crystals are all ways needed. 73 b.j. wb4yib From bjcannon at comcast.net Thu Jul 2 17:04:42 2015 From: bjcannon at comcast.net (b.j. cannon) Date: Thu, 2 Jul 2015 17:04:42 -0400 Subject: [Hallicrafters] HT-9 Message-ID: <000001d0b50a$b818ae30$284a0a90$@comcast.net> Good afternoon greg: Searching for info on ht9, found your post from several years back: wondering if you still have either one or both. I have been bitten by this monster, have a sx16 ready to "sleep" with one..that is complete, or that I may use for parts to correct the one I have.coils/cans/crystals are all ways needed. 73 b.j. wb4yib From radio at daileyservices.com Sun Jul 12 16:50:13 2015 From: radio at daileyservices.com (radio at daileyservices.com) Date: Sun, 12 Jul 2015 14:50:13 -0600 Subject: [Hallicrafters] Want S-76 - posted for a non-member Message-ID: Wanted - HALLICRAFTERS S-76 receiver, dead or alive. Trying to resurrect for non-ham friend, Working OR repairable. Brad McGann K9BM - Cell: (406) 220-0180 - bmcgann at rockywave.com --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com From hallicrafters at mailman.qth.net Sun Jul 12 17:46:02 2015 From: hallicrafters at mailman.qth.net (Joe Connor via Hallicrafters) Date: Sun, 12 Jul 2015 21:46:02 +0000 (UTC) Subject: [Hallicrafters] Want S-76 - posted for a non-member In-Reply-To: References: Message-ID: <1376504616.771065.1436737562788.JavaMail.yahoo@mail.yahoo.com> There's one on ebay right now. (I have no connection to the sale or the seller). Joe Connor Hallicrafters S-76 Receiver | ? | | ? | | ? | ? | ? | ? | ? | | Hallicrafters S-76 ReceiverUS $125.00 For parts or not working in Consumer Electronics, Radio Communication, Ham, Amateur Radio | | | | View on www.ebay.com | Preview by Yahoo | | | | ? | On Sunday, July 12, 2015 4:50 PM, "radio at daileyservices.com" wrote: Wanted - HALLICRAFTERS S-76 receiver, dead or alive.? Trying to resurrect? for non-ham friend,? Working OR repairable. Brad McGann K9BM - Cell: (406) 220-0180 - bmcgann at rockywave.com --- 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 rbethman at comcast.net Wed Jul 15 16:40:09 2015 From: rbethman at comcast.net (rbethman) Date: Wed, 15 Jul 2015 16:40:09 -0400 Subject: [Hallicrafters] Question for group Message-ID: <55A6C529.5050504@comcast.net> Has anyone ordered the Chinese frequency counter, PLJ-0802? If so, has anyone documentation in English? Regards, Bob N0DGN From nq5t at tx.rr.com Wed Jul 15 16:48:34 2015 From: nq5t at tx.rr.com (GRANT YOUNGMAN) Date: Wed, 15 Jul 2015 15:48:34 -0500 Subject: [Hallicrafters] Question for group In-Reply-To: <55A6C529.5050504@comcast.net> References: <55A6C529.5050504@comcast.net> Message-ID: <2699A641-95BC-4C7B-A29F-613A97A0B111@tx.rr.com> How hard is it to count a Chinese frequency? (Sorry, couldn?t resist) :-) Grant NQ5T > On Jul 15, 2015, at 3:40 PM, rbethman wrote: > > Has anyone ordered the Chinese frequency counter, PLJ-0802? > > If so, has anyone documentation in English? > > Regards, Bob N0DGN > ______________________________________________________________ From rbethman at comcast.net Wed Jul 15 17:03:34 2015 From: rbethman at comcast.net (rbethman) Date: Wed, 15 Jul 2015 17:03:34 -0400 Subject: [Hallicrafters] Question for group In-Reply-To: <2699A641-95BC-4C7B-A29F-613A97A0B111@tx.rr.com> References: <55A6C529.5050504@comcast.net> <2699A641-95BC-4C7B-A29F-613A97A0B111@tx.rr.com> Message-ID: <55A6CAA6.4000509@comcast.net> Yep! I understand completely! I make cracks just like that! The actual issue covers not being able to read Chinese, so I do not even know the input Z! It is a bit difficult to make or use existing probes. This goes from 1 MHz to 1200MHz. My much older counter only goes up to 80MHz. So this is a welcome addition! Regards, Bob - N0DGN On 7/15/2015 4:48 PM, GRANT YOUNGMAN wrote: > How hard is it to count a Chinese frequency? > > (Sorry, couldn?t resist) :-) > > Grant NQ5T > > >> On Jul 15, 2015, at 3:40 PM, rbethman wrote: >> >> Has anyone ordered the Chinese frequency counter, PLJ-0802? >> >> If so, has anyone documentation in English? >> >> Regards, Bob N0DGN >> ______________________________________________________________ > From ramnaz at peoplepc.com Wed Jul 15 17:07:41 2015 From: ramnaz at peoplepc.com (richard) Date: Wed, 15 Jul 2015 14:07:41 -0700 (GMT-07:00) Subject: [Hallicrafters] Need Help With SX-101 USB Problem Message-ID: <17391194.1436994462308.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> Hello. Have a SX-101 that when I go from USB to LSB & then want to go back to USB it is Dead but if I pull the 12AT7 tube out & put it back in then the receive in USB comes back on or if I turn the on & off many times then the USB receive comes back on yet the LSB never goes out.. Any body have this problem & if you fixed it can you tell me how? I have even put a small fan inside & that does nothing . Thanks Much Richard Richard Morris From hallicrafterssr2000 at k9axn.com Wed Jul 15 17:39:27 2015 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Wed, 15 Jul 2015 16:39:27 -0500 Subject: [Hallicrafters] Question for group In-Reply-To: <55A6C529.5050504@comcast.net> References: <55A6C529.5050504@comcast.net> Message-ID: Most Chinese instruments provide English manuals on line i.e. Tunghui. Grant, the frequency is displayed backward. Kidding aside, they are making superb instruments now-days. Kindest regards Jim K9AXN -----Original Message----- From: rbethman Sent: Wednesday, July 15, 2015 3:40 PM To: hallicrafters at mailman.qth.net Subject: [Hallicrafters] Question for group Has anyone ordered the Chinese frequency counter, PLJ-0802? If so, has anyone documentation in English? Regards, Bob N0DGN ______________________________________________________________ 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 Wed Jul 15 17:42:29 2015 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Wed, 15 Jul 2015 16:42:29 -0500 Subject: [Hallicrafters] Need Help With SX-101 USB Problem In-Reply-To: <17391194.1436994462308.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> References: <17391194.1436994462308.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> Message-ID: Richard, Look at the alignment instructions specifically the USB and LSB oscillator adjustment. It talks to the adjustment so that it will start reliably. Kindest regards Jim K9AXN -----Original Message----- From: richard Sent: Wednesday, July 15, 2015 4:07 PM To: Hallicrafters at mailman.qth.net Subject: [Hallicrafters] Need Help With SX-101 USB Problem Hello. Have a SX-101 that when I go from USB to LSB & then want to go back to USB it is Dead but if I pull the 12AT7 tube out & put it back in then the receive in USB comes back on or if I turn the on & off many times then the USB receive comes back on yet the LSB never goes out.. Any body have this problem & if you fixed it can you tell me how? I have even put a small fan inside & that does nothing . Thanks Much Richard Richard Morris ______________________________________________________________ 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 Jul 15 17:42:33 2015 From: rbethman at comcast.net (rbethman) Date: Wed, 15 Jul 2015 17:42:33 -0400 Subject: [Hallicrafters] Need Help With SX-101 USB Problem In-Reply-To: <17391194.1436994462308.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> References: <17391194.1436994462308.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> Message-ID: <55A6D3C9.9020802@comcast.net> Richard, You have switch contacts that need to be cleaned. Either use some TV tuner cleaner, carefully! Or you, once again, carefully, get some DeOxit Fader Lube. It is going to be a real PIA! You may even have crystal socket crud. Best of luck! Most of us have been through this with all the old receivers and transmitters. Regards, Bob - N0DGN On 7/15/2015 5:07 PM, richard wrote: > Hello. > Have a SX-101 that when I go from USB to LSB & then want to go back to USB it is Dead but if I pull the 12AT7 tube out & put it back in then the receive in USB comes back on or if I turn the on & off many times then the USB receive comes back on yet the LSB never goes out.. Any body have this problem & if you fixed it can you tell me how? I have even put a small fan inside & that does nothing . > Thanks Much > Richard From JM at D8ALUS.NET Wed Jul 15 18:27:33 2015 From: JM at D8ALUS.NET (Jack) Date: Wed, 15 Jul 2015 18:27:33 -0400 Subject: [Hallicrafters] Need Help With SX-101 USB Problem In-Reply-To: <55A6D3C9.9020802@comcast.net> References: <17391194.1436994462308.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> <55A6D3C9.9020802@comcast.net> Message-ID: <24c501d0bf4d$722dde20$56899a60$@D8ALUS.NET> This. DeOxit on the selector switch will get you back in the game -----Original Message----- From: Hallicrafters [mailto:hallicrafters-bounces at mailman.qth.net] On Behalf Of rbethman Sent: Wednesday, July 15, 2015 5:43 PM To: hallicrafters at mailman.qth.net Subject: Re: [Hallicrafters] Need Help With SX-101 USB Problem Richard, You have switch contacts that need to be cleaned. Either use some TV tuner cleaner, carefully! Or you, once again, carefully, get some DeOxit Fader Lube. It is going to be a real PIA! You may even have crystal socket crud. Best of luck! Most of us have been through this with all the old receivers and transmitters. Regards, Bob - N0DGN On 7/15/2015 5:07 PM, richard wrote: > Hello. > Have a SX-101 that when I go from USB to LSB & then want to go back to USB it is Dead but if I pull the 12AT7 tube out & put it back in then the receive in USB comes back on or if I turn the on & off many times then the USB receive comes back on yet the LSB never goes out.. Any body have this problem & if you fixed it can you tell me how? I have even put a small fan inside & that does nothing . > Thanks Much > Richard ______________________________________________________________ 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 mark.k3msb at gmail.com Wed Jul 15 19:33:16 2015 From: mark.k3msb at gmail.com (Mark K3MSB) Date: Wed, 15 Jul 2015 19:33:16 -0400 Subject: [Hallicrafters] Need Help With SX-101 USB Problem In-Reply-To: <17391194.1436994462308.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> References: <17391194.1436994462308.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> Message-ID: Hi Richard I have an SX-101A and have exactly the same problem you're experiencing. I've had my receiver for about 15 years and it started to do this about 5 years ago. I swapped the USB crystal with the one in my SX-111 and the problem went away. It came back last winter. USB works fine when the radio is turned on, but cuts out after a while. Switching between USB and LSB sometimes helps; mostly not. I recapped my receiver several years ago and also did the cleaning with DeOxit. Obviously, that didn't help. I think the only way to fix the problem is with an alignment as K9AXN mentioned. Parts go out of tolerance after 50 years, and I'm not surprised part of the converter needs tweaked. I suspect heating of a component and the resultant change in value is what is happening. What you could do it try some freeze spray, but the offending part may be in the converter subchassis which would make it rather difficult to get to. I don't know if you need an entire alignment or not; it's been many moons since I cracked the manual. 73 Mark K3MSB On Wed, Jul 15, 2015 at 5:07 PM, richard wrote: > Hello. > Have a SX-101 that when I go from USB to LSB & then want to go back to > USB it is Dead but if I pull the 12AT7 tube out & put it back in then the > receive in USB comes back on or if I turn the on & off many times then the > USB receive comes back on yet the LSB never goes out.. Any body have this > problem & if you fixed it can you tell me how? I have even put a small fan > inside & that does nothing . > Thanks Much > Richard > > Richard Morris > ______________________________________________________________ > 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 L at w0vt.us Wed Jul 15 19:49:33 2015 From: L at w0vt.us (Lee) Date: Wed, 15 Jul 2015 18:49:33 -0500 Subject: [Hallicrafters] Need Help With SX-101 USB Problem In-Reply-To: References: <17391194.1436994462308.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> Message-ID: <55A6F18D.4040603@w0vt.us> I had a problem like this when I bought a brand new SX-96 back in the late 50s. The problem bugged me for a couple years. I could always temporarily fix it by banging on the cabines. Mind you, it came from the factory this way. One day I was poking underneath and low and behold there was a tubular ceramic cap just slightly touching the main tuning frame. By banging on the cabinet it just slightly removed the short for awhile. You might have this condition with a part under the chassis. When I moved the cap slightly, I never had the problem again. Lee, w0vt- On 7/15/2015 6:33 PM, Mark K3MSB wrote: > Hi Richard > > I have an SX-101A and have exactly the same problem you're experiencing. > > I've had my receiver for about 15 years and it started to do this about 5 > years ago. I swapped the USB crystal with the one in my SX-111 and the > problem went away. > > It came back last winter. USB works fine when the radio is turned on, > but cuts out after a while. Switching between USB and LSB sometimes > helps; mostly not. > > I recapped my receiver several years ago and also did the cleaning with > DeOxit. Obviously, that didn't help. > > I think the only way to fix the problem is with an alignment as K9AXN > mentioned. Parts go out of tolerance after 50 years, and I'm not > surprised part of the converter needs tweaked. I suspect heating of a > component and the resultant change in value is what is happening. What > you could do it try some freeze spray, but the offending part may be in the > converter subchassis which would make it rather difficult to get to. > > I don't know if you need an entire alignment or not; it's been many moons > since I cracked the manual. > > 73 Mark K3MSB > > > > On Wed, Jul 15, 2015 at 5:07 PM, richard wrote: > >> Hello. >> Have a SX-101 that when I go from USB to LSB & then want to go back to >> USB it is Dead but if I pull the 12AT7 tube out & put it back in then the >> receive in USB comes back on or if I turn the on & off many times then the >> USB receive comes back on yet the LSB never goes out.. Any body have this >> problem & if you fixed it can you tell me how? I have even put a small fan >> inside & that does nothing . >> Thanks Much >> Richard >> >> Richard Morris >> ______________________________________________________________ >> 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 hwhall at compuserve.com Thu Jul 16 00:19:25 2015 From: hwhall at compuserve.com (hwhall at compuserve.com) Date: Thu, 16 Jul 2015 00:19:25 -0400 Subject: [Hallicrafters] Need Help With SX-101 USB Problem In-Reply-To: Message-ID: <14e9516a0dc-779b-12cf8@webprd-m79.mail.aol.com> I get the impression the problem might be related to a crystal that has become sluggish, and needs a lot of excitation to get started. Wayne WB4OGM -----Original Message----- From: Mark K3MSB To: richard Cc: List Hallicrafters Sent: Wed, Jul 15, 2015 5:33 pm Subject: Re: [Hallicrafters] Need Help With SX-101 USB Problem Hi Richard I have an SX-101A and have exactly the same problem you're experiencing. I've had my receiver for about 15 years and it started to do this about 5 years ago. I swapped the USB crystal with the one in my SX-111 and the problem went away. It came back last winter. USB works fine when the radio is turned on, but cuts out after a while. Switching between USB and LSB sometimes helps; mostly not. I recapped my receiver several years ago and also did the cleaning with DeOxit. Obviously, that didn't help. I think the only way to fix the problem is with an alignment as K9AXN mentioned. Parts go out of tolerance after 50 years, and I'm not surprised part of the converter needs tweaked. I suspect heating of a component and the resultant change in value is what is happening. What you could do it try some freeze spray, but the offending part may be in the converter subchassis which would make it rather difficult to get to. I don't know if you need an entire alignment or not; it's been many moons since I cracked the manual. 73 Mark K3MSB On Wed, Jul 15, 2015 at 5:07 PM, richard wrote: > Hello. > Have a SX-101 that when I go from USB to LSB & then want to go back to > USB it is Dead but if I pull the 12AT7 tube out & put it back in then the > receive in USB comes back on or if I turn the on & off many times then the > USB receive comes back on yet the LSB never goes out.. Any body have this > problem & if you fixed it can you tell me how? I have even put a small fan > inside & that does nothing . > Thanks Much > Richard > > Richard Morris > ______________________________________________________________ > 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 hwhall at compuserve.com Thu Jul 16 01:14:08 2015 From: hwhall at compuserve.com (hwhall at compuserve.com) Date: Thu, 16 Jul 2015 01:14:08 -0400 Subject: [Hallicrafters] Need Help With SX-101 USB Problem In-Reply-To: <24842980.1437020593144.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> References: <24842980.1437020593144.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> Message-ID: <14e9548ba89-779b-12df1@webprd-m79.mail.aol.com> I was referring to the USB sideband crystal. I don't own an SX-101 but just took a look at the schematic on BAMA. The sideband crystals are 1600kc & 1700kc. The 1700kc crystal is the one needed for USB reception. You could tune those frequencies on an AM band radio and verify if the USB crystal is actually running or not when you lose the USB function. I was thinking that the crystal may be not starting back up after you switch the sideband selection, due to perhaps some component changes over time and/or crystal aging. The V12 12AT7 (Second Conversion Osc.) dual-triode uses one half of the tube for the USB crystal oscillator and the other half for the LSB crystal osc. In other words the USB and LSB oscillators are two completely separate circuits, so one might easily work when the other doesn't. (Rather odd, that is, I would have thought they'd just swap crystals and use only one triode for the osc.) So, perhaps you should try a couple other 12AT7 tubes. It may be that the tube half for the USB is weak. If that doesn't help, verify that all the components associated with pins 2, 3, 4 of V12. According to the schematic, those are the half of the tube used by the 1700kc crystal. See if any resistor values changed a lot & maybe replace the cathode resistor bypass cap at pin 3. T9 is the coil/transformer for tuning up the USB & LSB oscillators. It may be that the USB side needs to be peaked up. The schematic says the lower slug in the T9 can is the one that tunes the 1700kc osc. Or perhaps there is a fault in the tuned circuit parts in the can if it won't peak up. This step is for the not-too-weak... swap the two crystals (temporarily) and see if the baulky crystal startup moves with the 1700kc crystal or if it stays on the same side of the tube circuit. If nothing else helps, this would verify that its the fault of an aging crystal. Hope this makes sense. Perhaps others will have better suggestions for testing the oscillator. Wayne WB4OGM -----Original Message----- From: richard To: hwhall Sent: Wed, Jul 15, 2015 10:23 pm Subject: Re: [Hallicrafters] Need Help With SX-101 USB Problem Hello Wayne. How would I know & are you talking about the Crystal in the tube in the back left side?? Thanks again for your note. Richard -----Original Message----- >From: hwhall at compuserve.com >Sent: Jul 15, 2015 9:19 PM >To: mark.k3msb at gmail.com, ramnaz at peoplepc.com >Cc: Hallicrafters at mailman.qth.net >Subject: Re: [Hallicrafters] Need Help With SX-101 USB Problem > >I get the impression the problem might be related to a crystal that has become sluggish, and needs a lot of excitation to get started. > > > Wayne >WB4OGM > > > >-----Original Message----- >From: Mark K3MSB >To: richard >Cc: List Hallicrafters >Sent: Wed, Jul 15, 2015 5:33 pm >Subject: Re: [Hallicrafters] Need Help With SX-101 USB Problem > > >Hi Richard > >I have an SX-101A and have exactly the same problem you're >experiencing. > >I've had my receiver for about 15 years and it started to do >this about 5 >years ago. I swapped the USB crystal with the one in my SX-111 >and the >problem went away. > >It came back last winter. USB works fine when >the radio is turned on, >but cuts out after a while. Switching between USB and >LSB sometimes >helps; mostly not. > >I recapped my receiver several years ago >and also did the cleaning with >DeOxit. Obviously, that didn't help. > >I >think the only way to fix the problem is with an alignment as K9AXN >mentioned. >Parts go out of tolerance after 50 years, and I'm not >surprised part of the >converter needs tweaked. I suspect heating of a >component and the resultant >change in value is what is happening. What >you could do it try some freeze >spray, but the offending part may be in the >converter subchassis which would >make it rather difficult to get to. > >I don't know if you need an entire >alignment or not; it's been many moons >since I cracked the manual. > >73 Mark >K3MSB > > > >On Wed, Jul 15, 2015 at 5:07 PM, richard >wrote: > >> Hello. >> Have a SX-101 that when I go from USB to LSB & then want >to go back to >> USB it is Dead but if I pull the 12AT7 tube out & put it back >in then the >> receive in USB comes back on or if I turn the on & off many times >then the >> USB receive comes back on yet the LSB never goes out.. Any body have >this >> problem & if you fixed it can you tell me how? I have even put a small >fan >> inside & that does nothing . >> Thanks Much >> Richard >> >> Richard >Morris >> ______________________________________________________________ >> >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 Richard Morris From hallicrafterssr2000 at k9axn.com Thu Jul 16 10:39:37 2015 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Thu, 16 Jul 2015 09:39:37 -0500 Subject: [Hallicrafters] Need Help With SX-101 USB Problem In-Reply-To: <14e9516a0dc-779b-12cf8@webprd-m79.mail.aol.com> References: <14e9516a0dc-779b-12cf8@webprd-m79.mail.aol.com> Message-ID: Hi Wayne et al, The crystal activity adjustment for the 1600Kc and 1700Kc crystals are the top and bottom slugs of T5. Simplest way to determine if the crystals are right is do those two adjustments. Take 5 minutes and don't have to do any other alignment adjustments. Good luck --- Kindest regards Jim K9AXN -----Original Message----- From: hwhall at compuserve.com Sent: Wednesday, July 15, 2015 11:19 PM To: mark.k3msb at gmail.com ; ramnaz at peoplepc.com Cc: Hallicrafters at mailman.qth.net Subject: Re: [Hallicrafters] Need Help With SX-101 USB Problem I get the impression the problem might be related to a crystal that has become sluggish, and needs a lot of excitation to get started. Wayne WB4OGM -----Original Message----- From: Mark K3MSB To: richard Cc: List Hallicrafters Sent: Wed, Jul 15, 2015 5:33 pm Subject: Re: [Hallicrafters] Need Help With SX-101 USB Problem Hi Richard I have an SX-101A and have exactly the same problem you're experiencing. I've had my receiver for about 15 years and it started to do this about 5 years ago. I swapped the USB crystal with the one in my SX-111 and the problem went away. It came back last winter. USB works fine when the radio is turned on, but cuts out after a while. Switching between USB and LSB sometimes helps; mostly not. I recapped my receiver several years ago and also did the cleaning with DeOxit. Obviously, that didn't help. I think the only way to fix the problem is with an alignment as K9AXN mentioned. Parts go out of tolerance after 50 years, and I'm not surprised part of the converter needs tweaked. I suspect heating of a component and the resultant change in value is what is happening. What you could do it try some freeze spray, but the offending part may be in the converter subchassis which would make it rather difficult to get to. I don't know if you need an entire alignment or not; it's been many moons since I cracked the manual. 73 Mark K3MSB On Wed, Jul 15, 2015 at 5:07 PM, richard wrote: > Hello. > Have a SX-101 that when I go from USB to LSB & then want to go back to > USB it is Dead but if I pull the 12AT7 tube out & put it back in then the > receive in USB comes back on or if I turn the on & off many times then the > USB receive comes back on yet the LSB never goes out.. Any body have this > problem & if you fixed it can you tell me how? I have even put a small fan > inside & that does nothing . > Thanks Much > Richard > > Richard Morris > ______________________________________________________________ > 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 From hallicrafterssr2000 at k9axn.com Thu Jul 16 10:42:46 2015 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Thu, 16 Jul 2015 09:42:46 -0500 Subject: [Hallicrafters] Need Help With SX-101 USB Problem In-Reply-To: <14e9548ba89-779b-12df1@webprd-m79.mail.aol.com> References: <24842980.1437020593144.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> <14e9548ba89-779b-12df1@webprd-m79.mail.aol.com> Message-ID: <0E1266A8BB814D3BA1CC24F962AF1278@LILESJLAPTOP> Well thought out advice Wayne. Regards Jim K9AXN -----Original Message----- From: hwhall at compuserve.com Sent: Thursday, July 16, 2015 12:14 AM To: ramnaz at peoplepc.com ; hallicrafters at mailman.qth.net Subject: Re: [Hallicrafters] Need Help With SX-101 USB Problem I was referring to the USB sideband crystal. I don't own an SX-101 but just took a look at the schematic on BAMA. The sideband crystals are 1600kc & 1700kc. The 1700kc crystal is the one needed for USB reception. You could tune those frequencies on an AM band radio and verify if the USB crystal is actually running or not when you lose the USB function. I was thinking that the crystal may be not starting back up after you switch the sideband selection, due to perhaps some component changes over time and/or crystal aging. The V12 12AT7 (Second Conversion Osc.) dual-triode uses one half of the tube for the USB crystal oscillator and the other half for the LSB crystal osc. In other words the USB and LSB oscillators are two completely separate circuits, so one might easily work when the other doesn't. (Rather odd, that is, I would have thought they'd just swap crystals and use only one triode for the osc.) So, perhaps you should try a couple other 12AT7 tubes. It may be that the tube half for the USB is weak. If that doesn't help, verify that all the components associated with pins 2, 3, 4 of V12. According to the schematic, those are the half of the tube used by the 1700kc crystal. See if any resistor values changed a lot & maybe replace the cathode resistor bypass cap at pin 3. T9 is the coil/transformer for tuning up the USB & LSB oscillators. It may be that the USB side needs to be peaked up. The schematic says the lower slug in the T9 can is the one that tunes the 1700kc osc. Or perhaps there is a fault in the tuned circuit parts in the can if it won't peak up. This step is for the not-too-weak... swap the two crystals (temporarily) and see if the baulky crystal startup moves with the 1700kc crystal or if it stays on the same side of the tube circuit. If nothing else helps, this would verify that its the fault of an aging crystal. Hope this makes sense. Perhaps others will have better suggestions for testing the oscillator. Wayne WB4OGM -----Original Message----- From: richard To: hwhall Sent: Wed, Jul 15, 2015 10:23 pm Subject: Re: [Hallicrafters] Need Help With SX-101 USB Problem Hello Wayne. How would I know & are you talking about the Crystal in the tube in the back left side?? Thanks again for your note. Richard -----Original Message----- >From: hwhall at compuserve.com >Sent: Jul 15, 2015 9:19 PM >To: mark.k3msb at gmail.com, ramnaz at peoplepc.com >Cc: Hallicrafters at mailman.qth.net >Subject: Re: [Hallicrafters] Need Help With SX-101 USB Problem > >I get the impression the problem might be related to a crystal that has become sluggish, and needs a lot of excitation to get started. > > > Wayne >WB4OGM > > > >-----Original Message----- >From: Mark K3MSB >To: richard >Cc: List Hallicrafters >Sent: Wed, Jul 15, 2015 5:33 pm >Subject: Re: [Hallicrafters] Need Help With SX-101 USB Problem > > >Hi Richard > >I have an SX-101A and have exactly the same problem you're >experiencing. > >I've had my receiver for about 15 years and it started to do >this about 5 >years ago. I swapped the USB crystal with the one in my SX-111 >and the >problem went away. > >It came back last winter. USB works fine when >the radio is turned on, >but cuts out after a while. Switching between USB and >LSB sometimes >helps; mostly not. > >I recapped my receiver several years ago >and also did the cleaning with >DeOxit. Obviously, that didn't help. > >I >think the only way to fix the problem is with an alignment as K9AXN >mentioned. >Parts go out of tolerance after 50 years, and I'm not >surprised part of the >converter needs tweaked. I suspect heating of a >component and the resultant >change in value is what is happening. What >you could do it try some freeze >spray, but the offending part may be in the >converter subchassis which would >make it rather difficult to get to. > >I don't know if you need an entire >alignment or not; it's been many moons >since I cracked the manual. > >73 Mark >K3MSB > > > >On Wed, Jul 15, 2015 at 5:07 PM, richard >wrote: > >> Hello. >> Have a SX-101 that when I go from USB to LSB & then want >to go back to >> USB it is Dead but if I pull the 12AT7 tube out & put it back >in then the >> receive in USB comes back on or if I turn the on & off many times >then the >> USB receive comes back on yet the LSB never goes out.. Any body have >this >> problem & if you fixed it can you tell me how? I have even put a small >fan >> inside & that does nothing . >> Thanks Much >> Richard >> >> Richard >Morris >> ______________________________________________________________ >> >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 Richard Morris ______________________________________________________________ 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 ramnaz at peoplepc.com Thu Jul 16 13:38:33 2015 From: ramnaz at peoplepc.com (richard) Date: Thu, 16 Jul 2015 10:38:33 -0700 (GMT-07:00) Subject: [Hallicrafters] Thank You All Message-ID: <13072018.1437068313501.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> Hello. I sent in yesterday a question about my SX-101 problem & I got some REAL Help Back & I want to thank you all that wrote. Now here is the best part for me I am not like a lot of you guys that grew up with the tube radios and know what you Hams know and have been able to not only work on & build your own stuff I struggle to get threw some of these problems but the answers I got back were almost like you guys knew that I am a green horn and you made it pretty clear for me as to how & what to do and look at and I just have to say a BIG thank you to each & every one of you as you guys are not like another place I wrote into as when they knew I did not know what they knew WELL I got dropped like a hot rock & have to this day not received one word from that group & I did post a few questions after the first time & did not get any reply.. I am learning to read the schematic and find some things in a transmitter or receiver & again it is a struggle for me. The Hams I know around here don't care one bit about trying to do as I do & that is fix things that are yours and I enjoy it & the old stuff called Boat Anchors . I have a Johnson Viking Valiant & the SX-101 & 2 heathkit HW-101 of which did not work when I got them & with the help of the assembly manual I was able to get them working & that made me feel like King Of The World & now I am into the valiant & 101... So I hope by taking the time to share some of my feelings with you all it will make you guys feel like the KING OF The World for helping me out and not turning your Nose Up like another group I know of. I will close in saying Thank You All & I will be checking on the things I was told about. Thanks Much. Richard Morris Peoria , Arizona The Ham's I am Thanking. Jim-K9ANX Wayne Bob Sullivan Lee Jack From hallicrafterssr2000 at k9axn.com Thu Jul 16 13:52:00 2015 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Thu, 16 Jul 2015 12:52:00 -0500 Subject: [Hallicrafters] Thank You All In-Reply-To: <13072018.1437068313501.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> References: <13072018.1437068313501.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> Message-ID: <889C6DA6EE1E403C9B11018F060E1F2F@LILESJLAPTOP> Very kind words Richard! I have to say that this reflector is one of the best because the folks that run it insist on courtesy and dignity --- an anomaly for many of the others. Good luck and Kindest regards Jim K9AXN -----Original Message----- From: richard Sent: Thursday, July 16, 2015 12:38 PM To: Hallicrafters Post Address Subject: [Hallicrafters] Thank You All Hello. I sent in yesterday a question about my SX-101 problem & I got some REAL Help Back & I want to thank you all that wrote. Now here is the best part for me I am not like a lot of you guys that grew up with the tube radios and know what you Hams know and have been able to not only work on & build your own stuff I struggle to get threw some of these problems but the answers I got back were almost like you guys knew that I am a green horn and you made it pretty clear for me as to how & what to do and look at and I just have to say a BIG thank you to each & every one of you as you guys are not like another place I wrote into as when they knew I did not know what they knew WELL I got dropped like a hot rock & have to this day not received one word from that group & I did post a few questions after the first time & did not get any reply.. I am learning to read the schematic and find some things in a transmitter or receiver & again it is a struggle for me. The Hams I know around here don't care one bit about trying to do as I do & that is fix things that are yours and I enjoy it & the old stuff called Boat Anchors . I have a Johnson Viking Valiant & the SX-101 & 2 heathkit HW-101 of which did not work when I got them & with the help of the assembly manual I was able to get them working & that made me feel like King Of The World & now I am into the valiant & 101... So I hope by taking the time to share some of my feelings with you all it will make you guys feel like the KING OF The World for helping me out and not turning your Nose Up like another group I know of. I will close in saying Thank You All & I will be checking on the things I was told about. Thanks Much. Richard Morris Peoria , Arizona The Ham's I am Thanking. Jim-K9ANX Wayne Bob Sullivan Lee Jack ______________________________________________________________ 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 k1lky68 at gmail.com Thu Jul 16 19:07:18 2015 From: k1lky68 at gmail.com (Roy Morgan) Date: Thu, 16 Jul 2015 19:07:18 -0400 Subject: [Hallicrafters] Need Help With SX-101 USB Problem In-Reply-To: <0E1266A8BB814D3BA1CC24F962AF1278@LILESJLAPTOP> References: <24842980.1437020593144.JavaMail.root@wamui-haziran.atl.sa.earthlink.net> <14e9548ba89-779b-12df1@webprd-m79.mail.aol.com> <0E1266A8BB814D3BA1CC24F962AF1278@LILESJLAPTOP> Message-ID: On Jul 16, 2015, at 10:42 AM, Jim Liles wrote: > Well thought out advice Wayne. Regards Jim K9AXN > ... > This step is for the not-too-weak... swap the two crystals (temporarily) and see if the baulky crystal startup moves with the 1700kc crystal I was about to raise an alarm that the crystals are hidden underneath the second mixer sub chassis (which is a BEAR to remove) BUT: I think it was at the SX-88 that I worked on. Are the crystals in sockets on the top of the sub chassis in the SX-101?? Roy Roy Morgan k1lky68 at gmail.com K1LKY Since 1958 From hallicrafterssr2000 at k9axn.com Thu Jul 16 20:06:08 2015 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Thu, 16 Jul 2015 19:06:08 -0500 Subject: [Hallicrafters] Need Help With SX-101 USB Problem In-Reply-To: References: <24842980.1437020593144.JavaMail.root@wamui-haziran.atl.sa.earthlink.net><14e9548ba89-779b-12df1@webprd-m79.mail.aol.com><0E1266A8BB814D3BA1CC24F962AF1278@LILESJLAPTOP> Message-ID: <320EB642315B4938942E7D72F551EDA2@LILESJLAPTOP> Hi Roy, Yes, the crystals are under the sub chassis --- a pita. Haven?t found a bad crystal --- always the adjustment or something else pretty much covered by Wayne. As long as you divulged working on the SX-88, I have some questions. I?ll start another thread so as not to hijack this one. Cya there. Kindest regards Jim K9AXN -----Original Message----- From: Roy Morgan Sent: Thursday, July 16, 2015 6:07 PM To: Hallicrafters Subject: Re: [Hallicrafters] Need Help With SX-101 USB Problem On Jul 16, 2015, at 10:42 AM, Jim Liles wrote: > Well thought out advice Wayne. Regards Jim K9AXN > ... > This step is for the not-too-weak... swap the two crystals (temporarily) and see if the baulky crystal startup moves with the 1700kc crystal I was about to raise an alarm that the crystals are hidden underneath the second mixer sub chassis (which is a BEAR to remove) BUT: I think it was at the SX-88 that I worked on. Are the crystals in sockets on the top of the sub chassis in the SX-101?? Roy Roy Morgan k1lky68 at gmail.com K1LKY Since 1958 ______________________________________________________________ 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 Jul 16 20:21:51 2015 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Thu, 16 Jul 2015 19:21:51 -0500 Subject: [Hallicrafters] Hallicrafters SX-88 Message-ID: Good evening Roy, I have some questions regarding the SX-88. First have you done a sweep analysis of the 50Kc I.F. system or do you know of someone who has? Can anyone confirm that the 50Kc I.F. charts in the book are correct? Looking at the design I would expect the shape factor for the system to be close to 2/1 which is very close to the crystal filters of that time. Is that a correct analysis? Has anyone measured the Q of the first, second , and fourth 50Kc transformer pairs as well as the third pair? More but sure would like to hear from a person who has had one on the bench. That radio is probably the most enigmatic of the Hallicrafters bunch. Always wanted to put one through sea trials. Kindest regards Jim K9AXN From hallicrafters at mailman.qth.net Thu Jul 16 20:38:39 2015 From: hallicrafters at mailman.qth.net (Joe Connor via Hallicrafters) Date: Fri, 17 Jul 2015 00:38:39 +0000 (UTC) Subject: [Hallicrafters] Hallicrafters SX-88 In-Reply-To: References: Message-ID: <1793163414.631000.1437093519340.JavaMail.yahoo@mail.yahoo.com> Jim, Phil Nelson has an excellent article on restoring an SX-88 that contains some of the information that you are seeking. Joe Connor Hallicrafters Model SX-88 Communications Receiver (1954) | ? | | ? | | ? | ? | ? | ? | ? | | Hallicrafters Model SX-88 Communications Receiver (1954)Hallicrafters Model SX-88 Communications Receiver (1954) ?????? ?????? ???? ?????? ??Owners Manual??QST Review What's the finest Hallicrafters radio ever m... | | | | View on www.antiqueradio.org | Preview by Yahoo | | | | ? | On Thursday, July 16, 2015 8:22 PM, Jim Liles wrote: Good evening Roy, I have some questions regarding the SX-88.? First have you done a sweep analysis of the 50Kc I.F. system or do you know of someone who has? Can anyone confirm that the 50Kc I.F. charts in the book are correct? Looking at the design I would expect the shape factor for the system to be close to 2/1 which is very close to the crystal filters of that time.? Is that a correct analysis? Has anyone measured the Q of the first, second , and fourth 50Kc transformer pairs as well as the third pair? More but sure would like to hear from a person who has had one on the bench.? That radio is probably the most enigmatic of the Hallicrafters bunch.? Always wanted to put one through sea trials. Kindest regards Jim K9AXN? ______________________________________________________________ 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 Jul 16 20:54:40 2015 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Thu, 16 Jul 2015 19:54:40 -0500 Subject: [Hallicrafters] Hallicrafters SX-88 In-Reply-To: <1793163414.631000.1437093519340.JavaMail.yahoo@mail.yahoo.com> References: <1793163414.631000.1437093519340.JavaMail.yahoo@mail.yahoo.com> Message-ID: <9FA52E280DD640A19090ED790EEF35E6@LILESJLAPTOP> Thanks for responding Joe, I?ll have a look and get back. Kindest regards Jim K9AXN -----Original Message----- From: Joe Connor via Hallicrafters Sent: Thursday, July 16, 2015 7:38 PM To: Jim Liles ; hallicrafters at mailman.qth.net ; Roy Morgan Subject: Re: [Hallicrafters] Hallicrafters SX-88 Jim, Phil Nelson has an excellent article on restoring an SX-88 that contains some of the information that you are seeking. Joe Connor Hallicrafters Model SX-88 Communications Receiver (1954) | | | | | | | | | | | Hallicrafters Model SX-88 Communications Receiver (1954)Hallicrafters Model SX-88 Communications Receiver (1954) Owners Manual QST Review What's the finest Hallicrafters radio ever m... | | | | View on www.antiqueradio.org | Preview by Yahoo | | | | | On Thursday, July 16, 2015 8:22 PM, Jim Liles wrote: Good evening Roy, I have some questions regarding the SX-88. First have you done a sweep analysis of the 50Kc I.F. system or do you know of someone who has? Can anyone confirm that the 50Kc I.F. charts in the book are correct? Looking at the design I would expect the shape factor for the system to be close to 2/1 which is very close to the crystal filters of that time. Is that a correct analysis? Has anyone measured the Q of the first, second , and fourth 50Kc transformer pairs as well as the third pair? More but sure would like to hear from a person who has had one on the bench. That radio is probably the most enigmatic of the Hallicrafters bunch. Always wanted to put one through sea trials. Kindest regards Jim K9AXN ______________________________________________________________ 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 hallicrafters at mailman.qth.net Fri Jul 17 15:02:19 2015 From: hallicrafters at mailman.qth.net (Greg Gore via Hallicrafters) Date: Fri, 17 Jul 2015 15:02:19 -0400 Subject: [Hallicrafters] Hallicrafters SX-88 In-Reply-To: <9FA52E280DD640A19090ED790EEF35E6@LILESJLAPTOP> Message-ID: <14e9d654f64-2e07-1926a@webprd-a85.mail.aol.com> Phil Nelson is more of a television hobbyist and his SX-88 restoration which turns up on the Internet was not a good complete restoration. He stated in his write-up the 2nd converter deck looked like too much work to remove and he "hoped" leaving the original capacitors in there would not be a problem. Also, Phil Nelson did not remove the 1st and 2nd RF stage modules to replace those screen and plate bypass capacitors and made no mention of that. A far better report of a more comprehensive Hallicrafters SX-88 restoration with a follow-up performance report can be found by Jay Rusgrove; W1VD at: http://www.w1vd.com/HallicraftersSX-88.html Regards, Greg WA1KBQ -----Original Message----- From: Jim Liles To: Joe Connor ; hallicrafters ; Roy Morgan Sent: Thu, Jul 16, 2015 9:00 pm Subject: Re: [Hallicrafters] Hallicrafters SX-88 Thanks for responding Joe, I?ll have a look and get back. Kindest regards Jim K9AXN -----Original Message----- From: Joe Connor via Hallicrafters Sent: Thursday, July 16, 2015 7:38 PM To: Jim Liles ; hallicrafters at mailman.qth.net ; Roy Morgan Subject: Re: [Hallicrafters] Hallicrafters SX-88 Jim, Phil Nelson has an excellent article on restoring an SX-88 that contains some of the information that you are seeking. Joe Connor Hallicrafters Model SX-88 Communications Receiver (1954) | | | | | | | | | | | Hallicrafters Model SX-88 Communications Receiver (1954)Hallicrafters Model SX-88 Communications Receiver (1954) Owners Manual QST Review What's the finest Hallicrafters radio ever m... | | | | View on www.antiqueradio.org | Preview by Yahoo | | | | | On Thursday, July 16, 2015 8:22 PM, Jim Liles wrote: Good evening Roy, I have some questions regarding the SX-88. First have you done a sweep analysis of the 50Kc I.F. system or do you know of someone who has? Can anyone confirm that the 50Kc I.F. charts in the book are correct? Looking at the design I would expect the shape factor for the system to be close to 2/1 which is very close to the crystal filters of that time. Is that a correct analysis? Has anyone measured the Q of the first, second , and fourth 50Kc transformer pairs as well as the third pair? More but sure would like to hear from a person who has had one on the bench. That radio is probably the most enigmatic of the Hallicrafters bunch. Always wanted to put one through sea trials. Kindest regards Jim K9AXN ______________________________________________________________ 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 From kb5gt at cableone.net Fri Jul 17 17:38:54 2015 From: kb5gt at cableone.net (ED MCKIE) Date: Fri, 17 Jul 2015 17:38:54 -0400 (EDT) Subject: [Hallicrafters] Vintage Hallicrafters SSB Nets In-Reply-To: <987232213.65580608.1437169000282.JavaMail.zimbra@cableone.net> Message-ID: <862390486.65657422.1437169134283.JavaMail.zimbra@cableone.net> Does anyone know if the Hallicrafters Vintage SSB nets are still active? If they are, what are freqs and times? ? Thanks, Ed,? KB5GT ? From hallicrafters at mailman.qth.net Fri Jul 17 21:03:41 2015 From: hallicrafters at mailman.qth.net (Greg Gore via Hallicrafters) Date: Fri, 17 Jul 2015 21:03:41 -0400 Subject: [Hallicrafters] Frivolous Hallicrafters SX-88 Post In-Reply-To: <14e9d654f64-2e07-1926a@webprd-a85.mail.aol.com> Message-ID: <14e9eb0286b-2e07-1a348@webprd-a85.mail.aol.com> [quote author=Todd, KA1KAQ link=topic=31107.msg242732#msg242732 date=1334343293] Excellent work, Jay. Your thorough review of the receiver should answer any questions and settle a lot of old debates over performance. It's actually better in some areas than I expected, others not so much.[/quote] The above frivolous post was made on the amfone forum by Todd Bigelow; KA1KAQ now in Franklin, NC. Bigelow is a known SX-88 detractor but has never owned one. His criticism of the equipment is often without regard to engineering achievement and he has no notable restoration accomplishments of his own turning up in a google search. Those who have made significant contributions to the hobby will have many google search result returns which include the noteworthy work of W1VD. Greg Gore WA1KBQ From hallicrafterssr2000 at k9axn.com Fri Jul 17 21:54:47 2015 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Fri, 17 Jul 2015 20:54:47 -0500 Subject: [Hallicrafters] Vintage Hallicrafters SSB Nets In-Reply-To: <862390486.65657422.1437169134283.JavaMail.zimbra@cableone.net> References: <862390486.65657422.1437169134283.JavaMail.zimbra@cableone.net> Message-ID: <3D7587A2BA454D1FB1E27095AA415209@LILESJLAPTOP> Hi ED, Haven't been active for a while. Will tune around tomorrow to see. Maybe I'll hear you. Kindest regards Jim K9AXN -----Original Message----- From: ED MCKIE Sent: Friday, July 17, 2015 4:38 PM To: hallicrafters at mailman.qth.net Cc: kb5gt Subject: [Hallicrafters] Vintage Hallicrafters SSB Nets Does anyone know if the Hallicrafters Vintage SSB nets are still active? If they are, what are freqs and times? Thanks, Ed, KB5GT ______________________________________________________________ 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 Fri Jul 17 22:00:31 2015 From: rbethman at comcast.net (rbethman) Date: Fri, 17 Jul 2015 22:00:31 -0400 Subject: [Hallicrafters] Frivolous Hallicrafters SX-88 Post In-Reply-To: <14e9eb0286b-2e07-1a348@webprd-a85.mail.aol.com> References: <14e9eb0286b-2e07-1a348@webprd-a85.mail.aol.com> Message-ID: <55A9B33F.60007@comcast.net> Greg, Not the only thing he's come out with! Even with assistance from WB2FCN, Todd could not get a BC-610 to work either. He has been a big detractor of them also! I've had and put two versions on the air here. He does not know when to simply keep his mouth/fingers off the topic he knows nothing about! On 7/17/2015 9:03 PM, Greg Gore via Hallicrafters wrote: > The above frivolous post was made on the amfone forum by Todd Bigelow; KA1KAQ now in Franklin, NC. Bigelow is a known SX-88 detractor but has never owned one. His criticism of the equipment is often without regard to engineering achievement and he has no notable restoration accomplishments of his own turning up in a google search. Those who have made significant contributions to the hobby will have many google search result returns which include the noteworthy work of W1VD. > > > Greg Gore > WA1KBQ From n8azc at sssnet.com Fri Jul 17 22:11:43 2015 From: n8azc at sssnet.com (Mike Lopez) Date: Fri, 17 Jul 2015 22:11:43 -0400 Subject: [Hallicrafters] Vintage Hallicrafters SSB Nets In-Reply-To: <3D7587A2BA454D1FB1E27095AA415209@LILESJLAPTOP> References: <862390486.65657422.1437169134283.JavaMail.zimbra@cableone.net> <3D7587A2BA454D1FB1E27095AA415209@LILESJLAPTOP> Message-ID: <004f01d0c0ff$17968bc0$46c3a340$@sssnet.com> The Saturday Net is on 7280 12:30PM - 2:00 PM EST. There has been little propagation lately. Haven't been able to hear Net Control in a couple of weeks. Sorry, I won't be there tomorrow, but likely will be on next Saturday July 25. See you then !! Mike N8AZC -----Original Message----- From: Hallicrafters [mailto:hallicrafters-bounces at mailman.qth.net] On Behalf Of Jim Liles Sent: Friday, July 17, 2015 9:55 PM To: ED MCKIE; hallicrafters at mailman.qth.net Cc: kb5gt Subject: Re: [Hallicrafters] Vintage Hallicrafters SSB Nets Hi ED, Haven't been active for a while. Will tune around tomorrow to see. Maybe I'll hear you. Kindest regards Jim K9AXN -----Original Message----- From: ED MCKIE Sent: Friday, July 17, 2015 4:38 PM To: hallicrafters at mailman.qth.net Cc: kb5gt Subject: [Hallicrafters] Vintage Hallicrafters SSB Nets Does anyone know if the Hallicrafters Vintage SSB nets are still active? If they are, what are freqs and times? Thanks, Ed, KB5GT ______________________________________________________________ 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 thompson at mindspring.com Sat Jul 18 00:29:33 2015 From: thompson at mindspring.com (Dave Thompson) Date: Sat, 18 Jul 2015 00:29:33 -0400 (GMT-04:00) Subject: [Hallicrafters] Vintage Hallicrafters SSB Nets Message-ID: <12470701.1437193774505.JavaMail.root@elwamui-hybrid.atl.sa.earthlink.net> Have not been on in several months but there is a Hallicrafters net on 14292 or so on Sunday about 2PM Eastern followed by a Vintage SSB net. Dave K4JRB From anchor at ec.rr.com Sat Jul 18 15:32:31 2015 From: anchor at ec.rr.com (Al Parker) Date: Sat, 18 Jul 2015 15:32:31 -0400 Subject: [Hallicrafters] Vintage Hallicrafters SSB Nets In-Reply-To: <12470701.1437193774505.JavaMail.root@elwamui-hybrid.atl.sa.earthlink.net> References: <12470701.1437193774505.JavaMail.root@elwamui-hybrid.atl.sa.earthlink.net> Message-ID: <55AAA9CF.1090307@ec.rr.com> Hi Dave, et al, The 2PM Sun. net isn't the Hallicrafter net, it's the Vintage Sideband Net, that's been there well over 20 yrs. We haven't heard anyone trying the Halli net ahead of us for over a yr+ (IIRC), it was last regularly heard fron 1-2PM ET. I'm one of the net ctrl stns on the VSB Net. We're on 2-3PM ET Sun., 14292.5 +-, along with Lynn, K5LYN and any helpers. Andy, WB0SNF is back often, but Vince, WB4BPS is on "sabbatical". Everyone/anyone's welcome with us. We have some interesting eqpt ckg in, incl. some top-notch homebrew rigs. Heathkit guys come on after us, and Swan after that, 1 hr each. Brad, NB9M has started a website, www.vintagesideband.org which gets added to as his "real" work time allows. You can see pix of net ctrls, etc. 73, Al, W8UT www.boatanchors.org www.hammarlund.info "There is nothing -- absolutely nothing -- half so much worth doing as simply messing about in boats" Ratty, to Mole On 7/18/2015 12:29 AM, Dave Thompson wrote: > > Have not been on in several months but there is a Hallicrafters net on 14292 or so on Sunday about 2PM Eastern followed by a Vintage SSB net. > Dave K4JRB > > On 7/17/2015 5:38 PM, ED MCKIE wrote: > Does anyone know if the Hallicrafters Vintage SSB nets are still active? > If they are, what are freqs and times? > > Thanks, > Ed, KB5GT From anchor at ec.rr.com Sat Jul 18 17:09:16 2015 From: anchor at ec.rr.com (Al Parker) Date: Sat, 18 Jul 2015 17:09:16 -0400 Subject: [Hallicrafters] Vintage Hallicrafters SSB Nets In-Reply-To: <55AAB4C7.2010400@ec.rr.com> References: <12470701.1437193774505.JavaMail.root@elwamui-hybrid.atl.sa.earthlink.net> <55AAA9CF.1090307@ec.rr.com> <55AAAE28.5020709@knology.net> <55AAB4C7.2010400@ec.rr.com> Message-ID: <55AAC07C.8020708@ec.rr.com> Hi David, Yes, propagation is a crap-shoot. Last wk it was very short, I had ckins 300 mi. or so away, unusual, but strong, some fairly fast QSB. Also longer stns. Some wks it's "summertime lousy", sometimes OK. I regularly hear Alabama, no. & so. of the state, some FL stns - panhandle area, so should hear you OK. Keep trying. We try to get net ctrl help from various areas. Cupla wks ago it was so bad we quit early after talking between net ctrls for a while, few ckins. 73, Al, W8UT On 7/18/2015 3:51 PM, David C. Hallam wrote: > Al, > > How has propagation been lately? I try to get on sometimes from here in > Clearwater, but with my vertical antenna it's usually not a workable > situation. As far as I am concerned 20M has been really stinking lately. > > David > KW4DH From kb5gt at cableone.net Sat Jul 18 19:20:45 2015 From: kb5gt at cableone.net (ED MCKIE) Date: Sat, 18 Jul 2015 19:20:45 -0400 (EDT) Subject: [Hallicrafters] Thanks for Replies about Vintage Nets In-Reply-To: <1262885921.84949788.1437261603553.JavaMail.zimbra@cableone.net> Message-ID: <1535087430.84953823.1437261645980.JavaMail.zimbra@cableone.net> Thanks to all who made replies about vintage SSB nets. ? 73, Ed,? KB5GT ? From ka1kaq at gmail.com Sat Jul 18 23:28:16 2015 From: ka1kaq at gmail.com (Todd, KA1KAQ) Date: Sat, 18 Jul 2015 23:28:16 -0400 Subject: [Hallicrafters] Frivolous Hallicrafters SX-88 Post In-Reply-To: <14e9eb0286b-2e07-1a348@webprd-a85.mail.aol.com> References: <14e9d654f64-2e07-1926a@webprd-a85.mail.aol.com> <14e9eb0286b-2e07-1a348@webprd-a85.mail.aol.com> Message-ID: On Fri, Jul 17, 2015 at 9:03 PM, Greg Gore via Hallicrafters < hallicrafters at mailman.qth.net> wrote: > > [quote author=Todd, KA1KAQ link=topic=31107.msg242732#msg242732 > date=1334343293] > Excellent work, Jay. Your thorough review of the receiver should answer > any questions and settle a lot of old debates over performance. It's > actually better in some areas than I expected, others not so much.[/quote] > > > The above frivolous post was made on the amfone forum by Todd Bigelow; > KA1KAQ now in Franklin, NC. Bigelow is a known SX-88 detractor but has > never owned one. His criticism of the equipment is often without regard to > engineering achievement and he has no notable restoration accomplishments > of his own turning up in a google search. Those who have made significant > contributions to the hobby will have many google search result returns > which include the noteworthy work of W1VD. > Hmmm......can't see where I said anything 'frivolous', but I suppose when you're just looking to stir up the dust to draw attention to yourself, anything will do. Pretty sad, digging up years-old posts from a civil discussion on another forum between intelligent people about a less-than-high-performance receiver that is hyped primarily by you so you can line your pockets. As for being a detractor, only in your eyes. An awfully lot of other folks out there, owners and former owners, share similar views. You're confusing 'ownership' with 'experience'. You don't need the former to gain the latter. I think the real issue you have stems from the receiver you sold to a fellow in NY described as being in excellent shape, restored by you. The tuning cap was soaked with oil inside and it was way out of alignment. I recall the former owner spending a day getting the thing to work right after your golden screwdriver treatment. If that's your idea of "accomplishment", I'll pass. Then there's the issue of misinformation: telling a member on here who was looking for a tuning knob for his SX-88 'Good luck, you'll need to buy another SX-88 to get one' when they were actually used on several other sets. I gave him the correct information and he had a replacement knob the following week. I know revelations like these don't sit well with self-declared experts either. It must really suck to discover someone who never owned the receiver knew something about it that you didn't. Ouch. For clarity - not all of us need to post our projects or things we do to help others online for the purpose of impressing others. This seems to be your yardstick for success. For a narcissist like you, the internet must be a real boon. All those posts about the radios you were the high bidder on via ebay, or your involvement with NASCAR - like an insecure child, begging for attention. The people who care to know or need to know what I've done are perfectly aware and informed. I don't seek nor need approval from the likes of you, or pats on the back from online junkies for what I've given back to amateur radio and beyond. Now, run along, Greggie...the adults with a life beyond Google are busy. Here's a piece of Litz wire, don't get too excited and drool on it. From ka1kaq at gmail.com Sun Jul 19 00:18:27 2015 From: ka1kaq at gmail.com (Todd, KA1KAQ) Date: Sun, 19 Jul 2015 00:18:27 -0400 Subject: [Hallicrafters] Frivolous Hallicrafters SX-88 Post In-Reply-To: <55A9B33F.60007@comcast.net> References: <14e9eb0286b-2e07-1a348@webprd-a85.mail.aol.com> <55A9B33F.60007@comcast.net> Message-ID: On Fri, Jul 17, 2015 at 10:00 PM, rbethman wrote: > Greg, > > Not the only thing he's come out with! > > Even with assistance from WB2FCN, Todd could not get a BC-610 to work > either. > > He has been a big detractor of them also! > > I've had and put two versions on the air here. > > He does not know when to simply keep his mouth/fingers off the topic he > knows nothing about! > But of course, we all know you're an expert on everything, right Bob? When in doubt, use copious amounts of exclamation points to appear right and knowledgeable! First off, I happen to like the BC-610 just fine. I only sold mine because of a move in my future and the need to lighten the load and was sad to see it go. So I really have no idea what you're talking about(big surprise). The only problem I recall having was breaking one of the 2A3s, and a list member gave me a pair to replace it. Horrid person that I am, he wouldn't let me pay for them. When I found them last year and told him I was shipping them back, he said to sell them on ebay and put the money toward my daughter's college fund. [Sorry Greg, you won't find that on Google either] I wonder if you're confused yet again, Bob. Like that time on the AMRadio reflector when you accused Ron/W4RON of not QSLing a contact with you - remember that? He politely told you that you were mistaken, confusing him with someone else. You insisted. He firmly told you that you were mistaken. You called him a liar and spouted more stupid, rotten gibberish. Then someone else on the list pointed out who you were *really* talking about. Turns out you were wrong. Huh. Never did see you apologize to Ron, only say that you were 'human and make mistakes'. I should've thrown you off the list then and there, but Jim felt sorry for you and wanted to give you another chance. Again even, since you'd caused trouble before and gotten "another chance" previously. This is what happens when you spend to much time on the 'net, Bob. We've had numerous private exchanges about it when you were making a nuisance of yourself on some list(your endless posts leave me at a loss for where). So I can't say I'm surprised to see you jump on the bandwagon with Greggie at the opportunity to be seen as 'someone in the know'. If only you really did know. What you were talking about, that is. Hope you didn't feel too disappointed that I didn't respond to this sooner. unlike you, I actually have a life beyond the internet with a wife and 2 yr old daughter as well as many other interests beyond radio. Actually got on here to check on shipping a car from Washington state to here, or you might've had to wait several more days for your response, which I know is important because in your case . Made clear by your bizarre posting habits. My apologies to the list for responding to this garbage and giving these two yo-yos the attention they clearly were seeking. But I seldom post anymore, and sometimes you need to get down in the gutter to remind yourself how lucky you really are. And it's late, so.....good night. ~ Todd/KAQ From hallicrafters at mailman.qth.net Sun Jul 19 10:10:00 2015 From: hallicrafters at mailman.qth.net (Greg Gore via Hallicrafters) Date: Sun, 19 Jul 2015 10:10:00 -0400 Subject: [Hallicrafters] Frivolous Hallicrafters SX-88 Post In-Reply-To: References: Message-ID: <14ea6a66698-2e07-1d186@webprd-a85.mail.aol.com> Todd, Please, please calm down, this is not worth getting that upset over to the point you feel compelled to type out long angry replies at 11:30PM. The post was not intended to be a personal attack as you are a fellow long time 1-land ham and a fine person I believe but I do want to counter misinformation you post when I find it. I don't understand why you foster so much animosity toward the Hallicrafters SX-88. You've never owned one, nor operated a good one one but your hostility seems apparent every time you include yourself in discussions about them. I don't believe the SX-88 is the finest receiver of all time but I do think they're pretty good and they are somewhat scarce. Other receivers I have here that best it, and they should include: Icom IC-R9000, JRC NRD-545, HRO-600 and HRO-500 Still, the SX-88 is a great receiver and an engineering masterpiece, especially considering the 1954 time frame and I've probably gone deeper into them than most would feel comfortable with except of course for Jay, W1VD, whom I've learned a lot from and highly respect. As Jay said, The SX-88 is the only receiver to ever use that particular IF transformer design and it's one of the main reasons the receiver is desireable. I'm at the point now where I don't bench test them first anymore, I strip everything away and rebuild the entire receiver back into good condition again. One improvement I am in the process of implementing is to begin aligning the 50KC 2nd IF amplifier with a Hewlett Packard HP3585 spectrum analyzer in order to exactly reproduce the original engineering curves for the IF response. Considering the number of hours and amount of work it takes to do good thorough work one does not restore SX-88 receivers with the idea of lining their pockets. It is entirely a labor of love, purely for the enjoyment and personal achievement because few go that far to that extent. I am keeping track of my time on my current job just to see exactly what I will have invested in it but I estimate a couple hundred hours each on earlier jobs. SX-88s are my passion and I do enjoy having success with them; it's a therapeutic diversion away from my day job which for the last 23 years has been my involvement in the engine lab for Hendrick Motorsports. We've won over 350 NASCAR races with the best and most popular drivers in the industry so I've been fortunate to enjoy sharing in the success there also. http://i104.photobucket.com/albums/m191/wa1kbq/SX-88%20-%20400/SX88-40026.jpg Ready for soaking with oil and a twist of the golden screwdriver Greg Gore WA1KBQ From hallicrafters at mailman.qth.net Sun Jul 19 10:37:51 2015 From: hallicrafters at mailman.qth.net (Greg Gore via Hallicrafters) Date: Sun, 19 Jul 2015 10:37:51 -0400 Subject: [Hallicrafters] Frivolous Hallicrafters SX-88 Post In-Reply-To: Message-ID: <14ea6bfe9c5-2e07-1d22a@webprd-a85.mail.aol.com> Todd, Please, please calm down, this is not worth getting that upset over to the point you feel compelled to type out long angry replies at 11:30PM. The post was not intended to be a personal attack as you are a fellow long time 1-land ham and a fine person I believe but I do want to counter misinformation you post when I find it. I don't understand why you foster so much animosity toward the Hallicrafters SX-88. You've never owned one, nor operated a good one one but your hostility seems apparent every time you include yourself in discussions about them. I don't believe the SX-88 is the finest receiver of all time but I do think they're pretty good and they are somewhat scarce. Other receivers I have here that best it, and they should include: Icom IC-R9000, JRC NRD-545, HRO-600 and HRO-500 Still, the SX-88 is a great receiver and an engineering masterpiece, especially considering the 1954 time frame and I've probably gone deeper into them than most would feel comfortable with except of course for Jay, W1VD, whom I've learned a lot from and highly respect. As Jay said, The SX-88 is the only receiver to ever use that particular IF transformer design and it's one of the main reasons the receiver is desireable. I'm at the point now where I don't bench test them first anymore, I strip everything away and rebuild the entire receiver back into good condition again. One improvement I am in the process of implementing is to begin aligning the 50KC 2nd IF amplifier with a Hewlett Packard HP3585 spectrum analyzer in order to exactly reproduce the original engineering curves for the IF response. Considering the number of hours and amount of work it takes to do good thorough work one does not restore SX-88 receivers with the idea of lining their pockets. It is entirely a labor of love, purely for the enjoyment and personal achievement because few go that far to that extent. I am keeping track of my time on my current job just to see exactly what I will have invested in it but I estimate a couple hundred hours each on earlier jobs. SX-88s are my passion and I do enjoy having success with them; it's a therapeutic diversion away from my day job which for the last 23 years has been my involvement in the engine lab for Hendrick Motorsports. We've won over 350 NASCAR races with the best and most popular drivers in the industry so I've been fortunate to enjoy sharing in the success there also. http://i104.photobucket.com/albums/m191/wa1kbq/SX-88%20-%20400/SX88-40026.jpg Ready for soaking with oil and a twist of the golden screwdriver Greg Gore WA1KBQ From ka1kaq at gmail.com Sun Jul 19 12:59:34 2015 From: ka1kaq at gmail.com (Todd, KA1KAQ) Date: Sun, 19 Jul 2015 12:59:34 -0400 Subject: [Hallicrafters] Frivolous Hallicrafters SX-88 Post In-Reply-To: <14ea6a66698-2e07-1d186@webprd-a85.mail.aol.com> References: <14ea6a66698-2e07-1d186@webprd-a85.mail.aol.com> Message-ID: On Sun, Jul 19, 2015 at 10:10 AM, Greg Gore wrote: The post was not intended to be a personal attack as you are a fellow long > time 1-land ham and a fine person I believe but I do want to counter > misinformation you post when I find it. > Of course it's not, Greg. You just dug up a post from several years ago on another forum to make an issue over - despite the fact that there is no "misinformation" as you claim, simply opinions that differ from yours. > You've never owned one, nor operated a good one one > Well, the first one I ever operated was restored by you. So you've got me there. but your hostility seems apparent every time you include yourself in > discussions about them. > Clearly you consider any opinion that differs from yours as 'hostile' or some kind of attack. You see yourself as so important that someone stayed up late to pen a 'angry reply' to you, even. Fact of the matter is, I waiting for a call back from a fellow on the left coast about getting a car shipped here. Responding to your nonsense, though completely pointless, helped to pass the time. The pathetic part is, this is the most activity I've had on this list in months or years. One thing is certain Greg - you start these little episodes as opportunities to draw attention to yourself, your collection, your "accomplishments". As predictable as the rising and setting of the sun. The comments below prove this yet again. > Other receivers I have here that best it, and they should include: Icom > IC-R9000, JRC NRD-545, HRO-600 and HRO-500..... > > .....my day job which for the last 23 years has been my involvement in the engine lab for Hendrick Motorsports. We've won over 350 NASCAR races with the best and most popular drivers in the industry > > http://i104.photobucket.com/albums/m191/wa1kbq/SX-88%20-%20400/SX88-40026.jpg > > So responding just allows you to further publicize yourself and feed your ego, but that's okay. It's the least I can do for a fellow 1 lander. I'd say it's been fun, but 'funny' is probably more accurate. Lunch is over. Back out to the Farmall and mowing. And we're done here. Or, at least, I am. /KAQ From hallicrafters at mailman.qth.net Sun Jul 19 13:10:47 2015 From: hallicrafters at mailman.qth.net (John via Hallicrafters) Date: Sun, 19 Jul 2015 13:10:47 -0400 Subject: [Hallicrafters] Frivolous Hallicrafters SX-88 Post Message-ID: <11eb58.42201b50.42dd3417@aol.com> Enough already! 73, John, W4AWM In a message dated 7/19/2015 11:10:37 A.M. Eastern Daylight Time, hallicrafters at mailman.qth.net writes: Todd, Please, please calm down, this is not worth getting that upset over to the point you feel compelled to type out long angry replies at 11:30PM. The post was not intended to be a personal attack as you are a fellow long time 1-land ham and a fine person I believe but I do want to counter misinformation you post when I find it. I don't understand why you foster so much animosity toward the Hallicrafters SX-88. You've never owned one, nor operated a good one one but your hostility seems apparent every time you include yourself in discussions about them. I don't believe the SX-88 is the finest receiver of all time but I do think they're pretty good and they are somewhat scarce. Other receivers I have here that best it, and they should include: Icom IC-R9000, JRC NRD-545, HRO-600 and HRO-500 Still, the SX-88 is a great receiver and an engineering masterpiece, especially considering the 1954 time frame and I've probably gone deeper into them than most would feel comfortable with except of course for Jay, W1VD, whom I've learned a lot from and highly respect. As Jay said, The SX-88 is the only receiver to ever use that particular IF transformer design and it's one of the main reasons the receiver is desireable. I'm at the point now where I don't bench test them first anymore, I strip everything away and rebuild the entire receiver back into good condition again. One improvement I am in the process of implementing is to begin aligning the 50KC 2nd IF amplifier with a Hewlett Packard HP3585 spectrum analyzer in order to exactly reproduce the original engineering curves for the IF response. Considering the number of hours and amount of work it takes to do good thorough work one does not restore SX-88 receivers with the idea of lining their pockets. It is entirely a la bor of love, purely for the enjoyment and personal achievement because few go that far to that extent. I am keeping track of my time on my current job just to see exactly what I will have invested in it but I estimate a couple hundred hours each on earlier jobs. SX-88s are my passion and I do enjoy having success with them; it's a therapeutic diversion away from my day job which for the last 23 years has been my involvement in the engine lab for Hendrick Motorsports. We've won over 350 NASCAR races with the best and most popular drivers in the industry so I've been fortunate to enjoy sharing in the success there also. http://i104.photobucket.com/albums/m191/wa1kbq/SX-88%20-%20400/SX88-40026.jp g Ready for soaking with oil and a twist of the golden screwdriver Greg Gore WA1KBQ ______________________________________________________________ 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 Sun Jul 19 19:48:28 2015 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Sun, 19 Jul 2015 18:48:28 -0500 Subject: [Hallicrafters] Hallicrafters SX-88 In-Reply-To: References: Message-ID: <28FE6EDB7A354D7F9824CADC6DD3E657@LILESJLAPTOP> I would like to repeat an information request regarding the 50Kc I.F. system used in the SX-88. -----Original Message----- From: Jim Liles Sent: Thursday, July 16, 2015 7:21 PM To: hallicrafters at mailman.qth.net ; Roy Morgan Subject: [Hallicrafters] Hallicrafters SX-88 I have some questions regarding the SX-88. First have you done a sweep analysis of the 50Kc I.F. system or do you know of someone who has? At this point it appears that nobody has taken the time to sweep that system ---- anybody? Can anyone confirm that the 50Kc I.F. charts in the book are correct? Looking at the design I would expect the shape factor for the system to be close to 2.2/1 which is very close to the crystal filters of that time. Is that a correct analysis? Has anyone measured the Q of the first, second , and fourth 50Kc transformer pairs as well as the third pair? More questions but sure would like to hear from those who have had one on the bench. That radio is probably the most enigmatic of the Hallicrafters bunch. Always wanted to put one through sea trials. Would like to hear both objective as well as subjective opinions and test results. Sounds to be some strong feelings regarding that radio?s performance. Please for the moment put the past aside and help me with this project. Kindest regards Jim K9AXN ______________________________________________________________ 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 hallicrafters at mailman.qth.net Tue Jul 21 05:27:16 2015 From: hallicrafters at mailman.qth.net (Greg Gore via Hallicrafters) Date: Tue, 21 Jul 2015 05:27:16 -0400 Subject: [Hallicrafters] Hallicrafters SX-88 In-Reply-To: <28FE6EDB7A354D7F9824CADC6DD3E657@LILESJLAPTOP> References: <28FE6EDB7A354D7F9824CADC6DD3E657@LILESJLAPTOP> Message-ID: <14eaff045be-3d7f-13b@webprd-a85.mail.aol.com> Jim, There is a good recent report of a comprehensive Hallicrafters SX-88 restoration with follow-up performance test results by Jay Rusgrove; W1VD at: http://www.w1vd.com/HallicraftersSX-88.html Jay did measure the SX-88 50KC IF transformer "Q" and it's actually better than we anticipated at 230. The transformers Hallicrafters employed in other models using a 50KC 2nd IF system are not quite like these. Jay also swept the 50KC IF's after a complete electrical restoration and reports the curves do match the original engineering design. Regards, Greg Gore WA1KBQ -----Original Message----- From: Jim Liles To: hallicrafters ; Roy Morgan Sent: Sun, Jul 19, 2015 7:50 pm Subject: Re: [Hallicrafters] Hallicrafters SX-88 I would like to repeat an information request regarding the 50Kc I.F. system used in the SX-88. -----Original Message----- From: Jim Liles Sent: Thursday, July 16, 2015 7:21 PM To: hallicrafters at mailman.qth.net ; Roy Morgan Subject: [Hallicrafters] Hallicrafters SX-88 I have some questions regarding the SX-88. First have you done a sweep analysis of the 50Kc I.F. system or do you know of someone who has? At this point it appears that nobody has taken the time to sweep that system ---- anybody? Can anyone confirm that the 50Kc I.F. charts in the book are correct? Looking at the design I would expect the shape factor for the system to be close to 2.2/1 which is very close to the crystal filters of that time. Is that a correct analysis? Has anyone measured the Q of the first, second , and fourth 50Kc transformer pairs as well as the third pair? More questions but sure would like to hear from those who have had one on the bench. That radio is probably the most enigmatic of the Hallicrafters bunch. Always wanted to put one through sea trials. Would like to hear both objective as well as subjective opinions and test results. Sounds to be some strong feelings regarding that radio?s performance. Please for the moment put the past aside and help me with this project. Kindest regards Jim K9AXN ______________________________________________________________ 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 hallicrafterssr2000 at k9axn.com Tue Jul 21 20:22:07 2015 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Tue, 21 Jul 2015 19:22:07 -0500 Subject: [Hallicrafters] Hallicrafters SX-88 In-Reply-To: <14eaff045be-3d7f-13b@webprd-a85.mail.aol.com> References: <28FE6EDB7A354D7F9824CADC6DD3E657@LILESJLAPTOP> <14eaff045be-3d7f-13b@webprd-a85.mail.aol.com> Message-ID: <9F038FAE257D48AB91E28EA0A8D64C3F@LILESJLAPTOP> Good morning Greg, Don?t see any reference to Jays sweep analysis. I?ll contact Jay and check to see if he swept the band pass. Seem like there?s only a hand full of folks who have worked on these radios. Thanks again --- Kindest regards Jim K9AXN -----Original Message----- From: Greg Gore Sent: Tuesday, July 21, 2015 4:27 AM To: hallicrafterssr2000 at k9axn.com ; hallicrafters at mailman.qth.net Subject: Re: [Hallicrafters] Hallicrafters SX-88 Jim, There is a good recent report of a comprehensive Hallicrafters SX-88 restoration with follow-up performance test results by Jay Rusgrove; W1VD at:http://www.w1vd.com/HallicraftersSX-88.html Jay did measure the SX-88 50KC IF transformer "Q" and it's actually better than we anticipated at 230. The transformers Hallicrafters employed in other models using a 50KC 2nd IF system are not quite like these. Jay also swept the 50KC IF's after a complete electrical restoration and reports the curves do match the original engineering design. Regards, Greg Gore WA1KBQ -----Original Message----- From: Jim Liles To: hallicrafters ; Roy Morgan Sent: Sun, Jul 19, 2015 7:50 pm Subject: Re: [Hallicrafters] Hallicrafters SX-88 I would like to repeat an information request regarding the 50Kc I.F. system used in the SX-88. -----Original Message----- From: Jim Liles Sent: Thursday, July 16, 2015 7:21 PM To: hallicrafters at mailman.qth.net ; Roy Morgan Subject: [Hallicrafters] Hallicrafters SX-88 I have some questions regarding the SX-88. First have you done a sweep analysis of the 50Kc I.F. system or do you know of someone who has? At this point it appears that nobody has taken the time to sweep that system ---- anybody? Can anyone confirm that the 50Kc I.F. charts in the book are correct? Looking at the design I would expect the shape factor for the system to be close to 2.2/1 which is very close to the crystal filters of that time. Is that a correct analysis? Has anyone measured the Q of the first, second , and fourth 50Kc transformer pairs as well as the third pair? More questions but sure would like to hear from those who have had one on the bench. That radio is probably the most enigmatic of the Hallicrafters bunch. Always wanted to put one through sea trials. Would like to hear both objective as well as subjective opinions and test results. Sounds to be some strong feelings regarding that radio?s performance. Please for the moment put the past aside and help me with this project. Kindest regards Jim K9AXN ______________________________________________________________ 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 hallicrafters at mailman.qth.net Wed Jul 22 05:37:50 2015 From: hallicrafters at mailman.qth.net (Greg Gore via Hallicrafters) Date: Wed, 22 Jul 2015 05:37:50 -0400 Subject: [Hallicrafters] Hallicrafters SX-88 In-Reply-To: <9F038FAE257D48AB91E28EA0A8D64C3F@LILESJLAPTOP> Message-ID: <14eb5205065-3d7f-4005@webprd-a85.mail.aol.com> Jim, I see now you are correct as Jay made no direct reference to sweeping the IFs. He did mention using a spectrum analyzer so I assumed he adjusted the transformers with it. Without sweeping the IF stages individually there is no way to adjust the shape of each curve without flat topping them and hurting sensitivity. I recently obtained a Hewlett Packard 3585A spectrum analyzer so I'll be able to do that here now and it's planned for the next one when I reach that stage with it. Getting one's self in a position to be able to do a good job on these things is an expensive proposition and takes a lot of effort for just a hobby. Regards, Greg WA1KBQ -----Original Message----- From: Jim Liles To: Greg Gore ; hallicrafters Sent: Tue, Jul 21, 2015 11:24 pm Subject: Re: [Hallicrafters] Hallicrafters SX-88 Good morning Greg, Don?t see any reference to Jays sweep analysis. I?ll contact Jay and check to see if he swept the band pass. Seem like there?s only a hand full of folks who have worked on these radios. Thanks again --- Kindest regards Jim K9AXN -----Original Message----- From: Greg Gore Sent: Tuesday, July 21, 2015 4:27 AM To: hallicrafterssr2000 at k9axn.com ; hallicrafters at mailman.qth.net Subject: Re: [Hallicrafters] Hallicrafters SX-88 Jim, There is a good recent report of a comprehensive Hallicrafters SX-88 restoration with follow-up performance test results by Jay Rusgrove; W1VD at:http://www.w1vd.com/HallicraftersSX-88.html Jay did measure the SX-88 50KC IF transformer "Q" and it's actually better than we anticipated at 230. The transformers Hallicrafters employed in other models using a 50KC 2nd IF system are not quite like these. Jay also swept the 50KC IF's after a complete electrical restoration and reports the curves do match the original engineering design. Regards, Greg Gore WA1KBQ -----Original Message----- From: Jim Liles To: hallicrafters ; Roy Morgan Sent: Sun, Jul 19, 2015 7:50 pm Subject: Re: [Hallicrafters] Hallicrafters SX-88 I would like to repeat an information request regarding the 50Kc I.F. system used in the SX-88. -----Original Message----- From: Jim Liles Sent: Thursday, July 16, 2015 7:21 PM To: hallicrafters at mailman.qth.net ; Roy Morgan Subject: [Hallicrafters] Hallicrafters SX-88 I have some questions regarding the SX-88. First have you done a sweep analysis of the 50Kc I.F. system or do you know of someone who has? At this point it appears that nobody has taken the time to sweep that system ---- anybody? Can anyone confirm that the 50Kc I.F. charts in the book are correct? Looking at the design I would expect the shape factor for the system to be close to 2.2/1 which is very close to the crystal filters of that time. Is that a correct analysis? Has anyone measured the Q of the first, second , and fourth 50Kc transformer pairs as well as the third pair? More questions but sure would like to hear from those who have had one on the bench. That radio is probably the most enigmatic of the Hallicrafters bunch. Always wanted to put one through sea trials. Would like to hear both objective as well as subjective opinions and test results. Sounds to be some strong feelings regarding that radio?s performance. Please for the moment put the past aside and help me with this project. Kindest regards Jim K9AXN ______________________________________________________________ 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 From rbethman at comcast.net Wed Jul 22 09:36:57 2015 From: rbethman at comcast.net (rbethman) Date: Wed, 22 Jul 2015 09:36:57 -0400 Subject: [Hallicrafters] Hallicrafters SX-88 In-Reply-To: <14eb5205065-3d7f-4005@webprd-a85.mail.aol.com> References: <14eb5205065-3d7f-4005@webprd-a85.mail.aol.com> Message-ID: <55AF9C79.6010003@comcast.net> All, Jay gets a "little" into his setup and tests on other pages. One has to dig through all of his site. The page above doesn't have the Spectrum Analyzer, but does have a distortion analyzer. I'd suggest writing him. He may get you a block diagram of his method used. Regards, Bob - N0DGN On 7/22/2015 5:37 AM, Greg Gore via Hallicrafters wrote: > Jim, > > > I see now you are correct as Jay made no direct reference to sweeping the IFs. He did mention using a spectrum analyzer so I assumed he adjusted the transformers with it. Without sweeping the IF stages individually there is no way to adjust the shape of each curve without flat topping them and hurting sensitivity. I recently obtained a Hewlett Packard 3585A spectrum analyzer so I'll be able to do that here now and it's planned for the next one when I reach that stage with it. Getting one's self in a position to be able to do a good job on these things is an expensive proposition and takes a lot of effort for just a hobby. > > > Regards, Greg > WA1KBQ From hallicrafterssr2000 at k9axn.com Wed Jul 22 10:24:28 2015 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Wed, 22 Jul 2015 09:24:28 -0500 Subject: [Hallicrafters] Hallicrafters SX-88 In-Reply-To: <14eb5205065-3d7f-4005@webprd-a85.mail.aol.com> References: <14eb5205065-3d7f-4005@webprd-a85.mail.aol.com> Message-ID: <3537A06BB52F42CE838D4DD1844F0D59@LILESJLAPTOP> Thanks Greg, Bob, Appreciate your time and info. Your right regarding the cost of test gear. I deferred to the HP 8568B because it covers audio starting at 200 cycles to 1.5Gc @-135db. Had to go with programmable instruments because it was incredibly time consuming using manual setup gear. Don't get on the air much --- prefer bench work. Kindest regards Jim K9AXN -----Original Message----- From: Greg Gore via Hallicrafters Sent: Wednesday, July 22, 2015 4:37 AM To: hallicrafterssr2000 at k9axn.com ; hallicrafters at mailman.qth.net Subject: Re: [Hallicrafters] Hallicrafters SX-88 Jim, I see now you are correct as Jay made no direct reference to sweeping the IFs. He did mention using a spectrum analyzer so I assumed he adjusted the transformers with it. Without sweeping the IF stages individually there is no way to adjust the shape of each curve without flat topping them and hurting sensitivity. I recently obtained a Hewlett Packard 3585A spectrum analyzer so I'll be able to do that here now and it's planned for the next one when I reach that stage with it. Getting one's self in a position to be able to do a good job on these things is an expensive proposition and takes a lot of effort for just a hobby. Regards, Greg WA1KBQ -----Original Message----- From: Jim Liles To: Greg Gore ; hallicrafters Sent: Tue, Jul 21, 2015 11:24 pm Subject: Re: [Hallicrafters] Hallicrafters SX-88 Good morning Greg, Don?t see any reference to Jays sweep analysis. I?ll contact Jay and check to see if he swept the band pass. Seem like there?s only a hand full of folks who have worked on these radios. Thanks again --- Kindest regards Jim K9AXN -----Original Message----- From: Greg Gore Sent: Tuesday, July 21, 2015 4:27 AM To: hallicrafterssr2000 at k9axn.com ; hallicrafters at mailman.qth.net Subject: Re: [Hallicrafters] Hallicrafters SX-88 Jim, There is a good recent report of a comprehensive Hallicrafters SX-88 restoration with follow-up performance test results by Jay Rusgrove; W1VD at:http://www.w1vd.com/HallicraftersSX-88.html Jay did measure the SX-88 50KC IF transformer "Q" and it's actually better than we anticipated at 230. The transformers Hallicrafters employed in other models using a 50KC 2nd IF system are not quite like these. Jay also swept the 50KC IF's after a complete electrical restoration and reports the curves do match the original engineering design. Regards, Greg Gore WA1KBQ -----Original Message----- From: Jim Liles To: hallicrafters ; Roy Morgan Sent: Sun, Jul 19, 2015 7:50 pm Subject: Re: [Hallicrafters] Hallicrafters SX-88 I would like to repeat an information request regarding the 50Kc I.F. system used in the SX-88. -----Original Message----- From: Jim Liles Sent: Thursday, July 16, 2015 7:21 PM To: hallicrafters at mailman.qth.net ; Roy Morgan Subject: [Hallicrafters] Hallicrafters SX-88 I have some questions regarding the SX-88. First have you done a sweep analysis of the 50Kc I.F. system or do you know of someone who has? At this point it appears that nobody has taken the time to sweep that system ---- anybody? Can anyone confirm that the 50Kc I.F. charts in the book are correct? Looking at the design I would expect the shape factor for the system to be close to 2.2/1 which is very close to the crystal filters of that time. Is that a correct analysis? Has anyone measured the Q of the first, second , and fourth 50Kc transformer pairs as well as the third pair? More questions but sure would like to hear from those who have had one on the bench. That radio is probably the most enigmatic of the Hallicrafters bunch. Always wanted to put one through sea trials. Would like to hear both objective as well as subjective opinions and test results. Sounds to be some strong feelings regarding that radio?s performance. Please for the moment put the past aside and help me with this project. Kindest regards Jim K9AXN ______________________________________________________________ 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 ______________________________________________________________ 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 hallicrafters at mailman.qth.net Thu Jul 23 18:22:31 2015 From: hallicrafters at mailman.qth.net (Jammer via Hallicrafters) Date: Thu, 23 Jul 2015 18:22:31 -0400 Subject: [Hallicrafters] SX-88's by Greg Gore In-Reply-To: References: Message-ID: <14ebd02c06b-1d5c-a782@webprd-m04.mail.aol.com> " I'm at thepoint now where I don't bench test them first anymore, I strip everything awayand rebuild the entire receiver back into good condition again." - Greg Gore Greg, I've got this really nice Halli SX62-A......erm... 73, Terry KC9KEL " Nuke 'em from orbit. It's the only way to be sure." - Ripley, Aliens (1986) [IMDB] From hallicrafterssr2000 at k9axn.com Fri Jul 24 20:37:20 2015 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Fri, 24 Jul 2015 19:37:20 -0500 Subject: [Hallicrafters] Hallicrafters and Sweep methods Message-ID: Please add your sweep techniques and setups. -----Original Message----- From: Chris Farley Sent: Wednesday, July 22, 2015 11:30 AM To: Jim Liles Subject: Re: [Hallicrafters] Hallicrafters SX-88 I picked up an 8568B and got it working several months back. How have you found it useful for sweeping filters without the mating tracking generator? Regards, Chris From: Jim Liles Sent: Wednesday, July 22, 2015 1:07 PM To: Chris Farley Subject: Re: [Hallicrafters] Hallicrafters SX-88 Chris, The 8568B has a dual display function as well as what they call MAX HOLD. If you set it for MAXHOLD the peak of a sweep will be held. If you sweep a filter using MAXHOLD, the 8568B will intercept the sweep somewhere and paint a dot at that point. Simply let it run while sweeping and it will finally paint the whole wave form dot by dot. Takes a few minutes but is beautiful. Using a tracking generator locks you into a fairly high signal level. An example of using the 8568B to paint the MDS of a receiver. We sweep a ?140db 5Kc wide signal into the antenna lead and attach the 8568B to the output of the filter using maxhold. Let it paint the waveform then disconnect the sweeper and connect a 50 ohm terminator to the antenna connector. Now use the second trace to paint just the noise out of the filter. View both together and voila you see the MDS. Hundreds of other uses to follow. I?ll put the MDS traces on my web site and email you. Kindest regards Jim K9AXN From hallicrafterssr2000 at k9axn.com Fri Jul 24 21:05:24 2015 From: hallicrafterssr2000 at k9axn.com (Jim Liles) Date: Fri, 24 Jul 2015 20:05:24 -0500 Subject: [Hallicrafters] Hallicrafters and Sweep methods In-Reply-To: <771398122.2103944.1437764929489.JavaMail.yahoo@mail.yahoo.com> References: <771398122.2103944.1437764929489.JavaMail.yahoo@mail.yahoo.com> Message-ID: <5A49A930385D4264A543DC0F820FFAB5@LILESJLAPTOP> -----Original Message----- From: Chris Farley Sent: Friday, July 24, 2015 2:08 PM To: Jim Liles Subject: Re: [Hallicrafters] Hallicrafters and Sweep methods Jim, OK so if I'm reading this right, you put the 8658B into MAXHOLD which I assume is sort of a memory scope mode, and then manually sweep through the range of interest with a signal generator. My main sig gen is a (yeah yeah I know they aren't the greatest) 8656a or b, but I do also have a 606B. The latter would probably be much better for this, being the 8656 will only tune in steps. A working 8640B would probably be ideal, here. Am I close? C From: Jim Liles To: Chris Farley Sent: Wednesday, July 22, 2015 1:07 PM Subject: Re: [Hallicrafters] Hallicrafters Sweep methods Chris, That?s one way to do it but using a sweep generator is easier. If you don?t have a Sweep generator you can improvise by using a function generator to inject a ramp into the signal generators FM port. Used an 8640B, ramp generator, and 141T Spec analyzer for years. The 141T has a storage scope function but is very difficult to use. Have used the 8568B for many years since because setup time is nothing and you can store and retrieve a setup in the push of a key. The 8568B is one of few instruments that will cover 200cycles to 1.5Gc. Works great for audio as well as RF. ------------- ALSO ------------------ We do a full analysis of every stage measuring Gain, MDS, IMD, Birdies, and noise levels simply by slipping an ungrounded copper shield around each tube connected to the 8568B and for small signals through an 8447D preamp. A real time saver for regression testing. G-day to you Kindest regards Jim K9AXN Kindest regards Jim K9AXN From hallicrafters at mailman.qth.net Sat Jul 25 06:55:48 2015 From: hallicrafters at mailman.qth.net (DJ via Hallicrafters) Date: Sat, 25 Jul 2015 03:55:48 -0700 Subject: [Hallicrafters] SX-42 - trouble shooting weak and intermittent performance. In-Reply-To: Message-ID: <1437821748.72436.YahooMailBasic@web162605.mail.bf1.yahoo.com> Hi, I haven't posted here in a while, new family, new job, sdrs etc... Down to business, after several years of inactivity I broke out the SX-62 and the SX-42 and fired them up. Several years ago I gave them a both a good tune-up at the same time, one right after another over the course of a week if I remember correctly. They were completely recapped (even the cans) and realigned, some resistors were replaced that were way out of spec, looked burned, etc. At the time they were finished both were rocking. Well only the 62 is knocking the shingles off the roof. The 42 is not exactly dead but is experiencing some problems. I am very much the amateur in fixing these but can manage quite well if I know where to concentrate and how to proceed. I have my trusty Heathkit VTVM so I should be able to hone in on the problem and get her back up to speed. The problems are across all bands: 1. Audio intermittent and weak. Audio is about 1/2 to a 1/4 of what it should be when normal. Sometime the audio just just comes on but never at full 2. Weak reception/ insensitivity. 3. S/FM meter appears to not be working. So far I've replaced all the tubes with the ones from the 62 and back again. These all seem to be fine. There is one oddity in this radio, the 7A4 has been replaced with a 7G7 and modified accordingly. The radio works with this and I left it alone rather than change it back. The previous owner was some major science professor and a Hallicrafters collector - why it was modded this particular way is unknown. Any suggestions to get me going would be great. http://www.iarc.org/~4z5to/SX42.php 73, Douglas ------------------------------------------------ END OF MESSAGE -------------------------------------------- On Mon, 7/20/15, hallicrafters-request at mailman.qth.net wrote: Subject: Hallicrafters Digest, Vol 137, Issue 8 To: hallicrafters at mailman.qth.net Date: Monday, July 20, 2015, 2:48 AM Send Hallicrafters mailing list submissions to ??? hallicrafters at mailman.qth.net To subscribe or unsubscribe via the World Wide Web, visit ??? http://mailman.qth.net/mailman/listinfo/hallicrafters or, via email, send a message with subject or body 'help' to ??? hallicrafters-request at mailman.qth.net You can reach the person managing the list at ??? hallicrafters-owner at mailman.qth.net When replying, please edit your Subject line so it is more specific than "Re: Contents of Hallicrafters digest..." Today's Topics: ???1. Re: Frivolous Hallicrafters SX-88 Post ? ? ? (Greg Gore via Hallicrafters) ???2. Re: Frivolous Hallicrafters SX-88 Post ? ? ? (Greg Gore via Hallicrafters) ???3. Re: Frivolous Hallicrafters SX-88 Post (Todd, KA1KAQ) ???4. Re: Frivolous Hallicrafters SX-88 Post (John via Hallicrafters) ???5. Re: Hallicrafters SX-88 (Jim Liles) ---------------------------------------------------------------------- Message: 1 Date: Sun, 19 Jul 2015 10:10:00 -0400 From: Greg Gore via Hallicrafters To: ka1kaq at gmail.com, hallicrafters at mailman.qth.net Subject: Re: [Hallicrafters] Frivolous Hallicrafters SX-88 Post Message-ID: <14ea6a66698-2e07-1d186 at webprd-a85.mail.aol.com> Content-Type: text/plain; charset=utf-8 Todd, Please, please calm down, this is not worth getting that upset over to the point you feel compelled to type out long angry replies at 11:30PM. The post was not intended to be a personal attack as you are a fellow long time 1-land ham and a fine person I believe but I do want to counter misinformation you post when I find it. I don't understand why you foster so much animosity toward the Hallicrafters SX-88. You've never owned one, nor operated a good one one but your hostility seems apparent every time you include yourself in discussions about them. I don't believe the SX-88 is the finest receiver of all time but I do think they're pretty good and they are somewhat scarce. Other receivers I have here that best it, and they should include: Icom IC-R9000, JRC NRD-545, HRO-600 and HRO-500 Still, the SX-88 is a great receiver and an engineering masterpiece, especially considering the 1954 time frame and I've probably gone deeper into them than most would feel comfortable with except of course for Jay, W1VD, whom I've learned a lot from and highly respect. As Jay said, The SX-88 is the only receiver to ever use that particular IF transformer design and it's one of the main reasons the receiver is desireable. I'm at the point now where I don't bench test them first anymore, I strip everything away and rebuild the entire receiver back into good condition again. One improvement I am in the process of implementing is to begin aligning the 50KC 2nd IF amplifier with a Hewlett Packard HP3585 spectrum analyzer in order to exactly reproduce the original engineering curves for the IF response. Considering the number of hours and amount of work it takes to do good thorough work one does not restore SX-88 receivers with the idea of lining their pockets. It is entirely a la bor of love, purely for the enjoyment and personal achievement because few go that far to that extent. I am keeping track of my time on my current job just to see exactly what I will have invested in it but I estimate a couple hundred hours each on earlier jobs. SX-88s are my passion and I do enjoy having success with them; it's a therapeutic diversion away from my day job which for the last 23 years has been my involvement in the engine lab for Hendrick Motorsports. We've won over 350 NASCAR races with the best and most popular drivers in the industry so I've been fortunate to enjoy sharing in the success there also. http://i104.photobucket.com/albums/m191/wa1kbq/SX-88%20-%20400/SX88-40026.jpg Ready for soaking with oil and a twist of the golden screwdriver Greg Gore WA1KBQ ------------------------------ Message: 2 Date: Sun, 19 Jul 2015 10:37:51 -0400 From: Greg Gore via Hallicrafters To: hallicrafters at mailman.qth.net Subject: Re: [Hallicrafters] Frivolous Hallicrafters SX-88 Post Message-ID: <14ea6bfe9c5-2e07-1d22a at webprd-a85.mail.aol.com> Content-Type: text/plain; charset=utf-8 Todd, Please, please calm down, this is not worth getting that upset over to the point you feel compelled to type out long angry replies at 11:30PM. The post was not intended to be a personal attack as you are a fellow long time 1-land ham and a fine person I believe but I do want to counter misinformation you post when I find it. I don't understand why you foster so much animosity toward the Hallicrafters SX-88. You've never owned one, nor operated a good one one but your hostility seems apparent every time you include yourself in discussions about them. I don't believe the SX-88 is the finest receiver of all time but I do think they're pretty good and they are somewhat scarce. Other receivers I have here that best it, and they should include: Icom IC-R9000, JRC NRD-545, HRO-600 and HRO-500 Still, the SX-88 is a great receiver and an engineering masterpiece, especially considering the 1954 time frame and I've probably gone deeper into them than most would feel comfortable with except of course for Jay, W1VD, whom I've learned a lot from and highly respect. As Jay said, The SX-88 is the only receiver to ever use that particular IF transformer design and it's one of the main reasons the receiver is desireable. I'm at the point now where I don't bench test them first anymore, I strip everything away and rebuild the entire receiver back into good condition again. One improvement I am in the process of implementing is to begin aligning the 50KC 2nd IF amplifier with a Hewlett Packard HP3585 spectrum analyzer in order to exactly reproduce the original engineering curves for the IF response. Considering the number of hours and amount of work it takes to do good thorough work one does not restore SX-88 receivers with the idea of lining their pockets. It is entirely a la bor of love, purely for the enjoyment and personal achievement because few go that far to that extent. I am keeping track of my time on my current job just to see exactly what I will have invested in it but I estimate a couple hundred hours each on earlier jobs. SX-88s are my passion and I do enjoy having success with them; it's a therapeutic diversion away from my day job which for the last 23 years has been my involvement in the engine lab for Hendrick Motorsports. We've won over 350 NASCAR races with the best and most popular drivers in the industry so I've been fortunate to enjoy sharing in the success there also. http://i104.photobucket.com/albums/m191/wa1kbq/SX-88%20-%20400/SX88-40026.jpg Ready for soaking with oil and a twist of the golden screwdriver Greg Gore WA1KBQ ------------------------------ Message: 3 Date: Sun, 19 Jul 2015 12:59:34 -0400 From: "Todd, KA1KAQ" To: Hallicrafters Reflector Subject: Re: [Hallicrafters] Frivolous Hallicrafters SX-88 Post Message-ID: ??? Content-Type: text/plain; charset=UTF-8 On Sun, Jul 19, 2015 at 10:10 AM, Greg Gore wrote: The post was not intended to be a personal attack as you are a fellow long > time 1-land ham and a fine person I believe but I do want to counter > misinformation you post when I find it. > Of course it's not, Greg. You just dug up a post from several years ago on another forum to make an issue over - despite the fact that there is no "misinformation" as you claim, simply opinions that differ from yours. >? You've never owned one, nor operated a good one one > Well, the first one I ever operated was restored by you. So you've got me there. but your hostility seems apparent every time you include yourself in > discussions about them. > Clearly you consider any opinion that differs from yours as 'hostile' or some kind of attack. You see yourself as so important that someone stayed up late to pen a 'angry reply' to you, even. Fact of the matter is, I waiting for a call back from a fellow on the left coast about getting a car shipped here. Responding to your nonsense, though completely pointless, helped to pass the time. The pathetic part is, this is the most activity I've had on this list in months or years. One thing is certain Greg - you start these little episodes as opportunities to draw attention to yourself, your collection, your "accomplishments". As predictable as the rising and setting of the sun. The comments below prove this yet again. > Other receivers I have here that best it, and they should include: Icom > IC-R9000, JRC NRD-545, HRO-600 and HRO-500..... > > .....my day job which for the last 23 years has been my involvement in the engine lab for Hendrick Motorsports. We've won over 350 NASCAR races with the best and most popular drivers in the industry > > http://i104.photobucket.com/albums/m191/wa1kbq/SX-88%20-%20400/SX88-40026.jpg > > So responding just allows you to further publicize yourself and feed your ego, but that's okay. It's the least I can do for a fellow 1 lander. I'd say it's been fun, but 'funny' is probably more accurate. Lunch is over. Back out to the Farmall and mowing. And we're done here. Or, at least, I am. /KAQ ------------------------------ Message: 4 Date: Sun, 19 Jul 2015 13:10:47 -0400 From: John via Hallicrafters To: wa1kbq at aol.com, hallicrafters at mailman.qth.net Subject: Re: [Hallicrafters] Frivolous Hallicrafters SX-88 Post Message-ID: <11eb58.42201b50.42dd3417 at aol.com> Content-Type: text/plain; charset="US-ASCII" Enough already! 73, John, W4AWM In a message dated 7/19/2015 11:10:37 A.M. Eastern Daylight Time,? hallicrafters at mailman.qth.net writes: Todd, Please, please calm down, this is not worth? getting that upset over to the point you feel compelled to type out long angry? replies at 11:30PM. The post was not intended to be a personal attack as you? are a fellow long time 1-land ham and a fine person I believe but I do want to? counter misinformation you post when I find it. I don't understand why you? foster so much animosity toward the Hallicrafters SX-88. You've never owned? one, nor operated a good one one but your hostility seems apparent every time? you include yourself in discussions about them. I don't believe the SX-88 is? the finest receiver of all time but I do think they're pretty good and they? are somewhat scarce. Other receivers I have here that best it, and they should? include: Icom IC-R9000, JRC NRD-545, HRO-600 and HRO-500 Still, the? SX-88 is a great receiver and an engineering masterpiece, especially? considering the 1954 time frame and I've probably gone deeper into them than? most would feel comfortable with except of course for Jay, W1VD, whom I've? learned a lot from and highly respect. As Jay said, The SX-88 is the only? receiver to ever use that particular IF transformer design and it's one of the? main reasons the receiver is desireable. I'm at the point now where I don't? bench test them first anymore, I strip everything away and rebuild the entire? receiver back into good condition again. One improvement I am in the process? of implementing is to begin aligning the 50KC 2nd IF amplifier with a Hewlett? Packard HP3585 spectrum analyzer in order to exactly reproduce the original? engineering curves for the IF response. Considering the number of hours and? amount of work it takes to do good thorough work one does not restore SX-88? receivers with the idea of lining their pockets. It is entirely a la bor of? love, purely for the enjoyment and personal achievement because few go that? far to that extent. I am keeping track of my time on my current job just to? see exactly what I will have invested in it but I estimate a couple hundred? hours each on earlier jobs. SX-88s are my passion and I do enjoy having? success with them; it's a therapeutic diversion away from my day job which for? the last 23 years has been my involvement in the engine lab for Hendrick? Motorsports. We've won over 350 NASCAR races with the best and most popular? drivers in the industry so I've been fortunate to enjoy sharing in the success? there? also. http://i104.photobucket.com/albums/m191/wa1kbq/SX-88%20-%20400/SX88-40026.jp g Ready? for soaking with oil and a twist of the golden screwdriver Greg? Gore WA1KBQ ______________________________________________________________ Hallicrafters? mailing list Home:? http://mailman.qth.net/mailman/listinfo/hallicrafters Help:? http://mailman.qth.net/mmfaq.htm Post:? mailto:Hallicrafters at mailman.qth.net List Administrator: Duane Fischer,? W8DBF ** For Assistance: dfischer at usol.com ** This list? hosted by: http://www.qsl.net Please help support this email list:? http://www.qsl.net/donate.html ------------------------------ Message: 5 Date: Sun, 19 Jul 2015 18:48:28 -0500 From: "Jim Liles" To: ,??? "Roy Morgan" Subject: Re: [Hallicrafters] Hallicrafters SX-88 Message-ID: <28FE6EDB7A354D7F9824CADC6DD3E657 at LILESJLAPTOP> Content-Type: text/plain;??? charset="utf-8" I would like to repeat an information request regarding the 50Kc I.F. system used in the SX-88.? -----Original Message----- From: Jim Liles Sent: Thursday, July 16, 2015 7:21 PM To: hallicrafters at mailman.qth.net ; Roy Morgan Subject: [Hallicrafters] Hallicrafters SX-88 I have some questions regarding the SX-88.? First have you done a sweep analysis of the 50Kc I.F. system or do you know of someone who has?? At this point it appears that nobody has taken the time to sweep that system ---- anybody? Can anyone confirm that the 50Kc I.F. charts in the book are correct? Looking at the design I would expect the shape factor for the system to be close to 2.2/1 which is very close to the crystal filters of that time.? Is that a correct analysis? Has anyone measured the Q of the first, second , and fourth 50Kc transformer pairs as well as the third pair? More questions but sure would like to hear from those who have had one on the bench.? That radio is probably the most enigmatic of the Hallicrafters bunch.? Always wanted to put one through sea trials. Would like to hear both objective as well as subjective opinions and test results.? Sounds to be some strong feelings regarding that radio?s performance.? Please for the moment put the past aside and help me with this project.? ??? Kindest regards Jim K9AXN? ______________________________________________________________ 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 ------------------------------ Subject: Digest Footer ______________________________________________________________ Hallicrafters mailing list Home: http://mailman.qth.net/mailman/listinfo/hallicrafters Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Hallicrafters at mailman.qth.net List Administrator: Duane Fischer, W8DBF ** For Assistance: dfischer at usol.com ** This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ------------------------------ End of Hallicrafters Digest, Vol 137, Issue 8 ********************************************* From k1lky68 at gmail.com Sat Jul 25 10:27:49 2015 From: k1lky68 at gmail.com (Roy Morgan) Date: Sat, 25 Jul 2015 10:27:49 -0400 Subject: [Hallicrafters] SX-42 - trouble shooting weak and intermittent performance. In-Reply-To: <1437821748.72436.YahooMailBasic@web162605.mail.bf1.yahoo.com> References: <1437821748.72436.YahooMailBasic@web162605.mail.bf1.yahoo.com> Message-ID: On Jul 25, 2015, at 6:55 AM, DJ via Hallicrafters wrote: > ...I broke out the SX-62 and the SX-42 and fired them up?. The 42 is not exactly dead but is experiencing some problems. Douglas, My guess is that the SX-42 suffers from one fault, since you did a complete job of overhaul earlier. > ...I have my trusty Heathkit VTVM so I should be able to hone in on the problem and get her back up to speed. I think so, too. The VTVM is perhaps the single most valuable test item. > 1. Audio intermittent and weak. Audio is about 1/2 to a 1/4 of what it should be when normal. Sometime the audio just just comes on but never at full Here is an odd idea: It seems that you may not have a signal generator, audio or RF. Run a (shielded) wire from the top of the volume control in the SX-62 over to the top of the volume control in the SX-42. Pull the previous tube in the SX-42 and see if you can get similar audio from both radios, fed from the working SX-62. (Memory is faint: do either of these radios have a ?Phono input?? If so, that could be used as audio input in the SX-42.) This will tell you if the trouble in the SX-42 is in the audio section or earlier in the radio. > 2. Weak reception/ insensitivity. > 3. S/FM meter appears to not be working. These two combined hint at a trouble in the RF or IF section. > So far I've replaced all the tubes with the ones from the 62 and back again. These all seem to be fine. A very good starting step. > ...the 7A4 has been replaced with a 7G7 and modified accordingly. The radio works with this and I left it alone rather than change it back. I see from your website that the 7A4 triode was the BFO tube, and the 7G7 pentode would produce more gain and perhaps more reliable operation. If it used to work as is, just see if it is working still. You report that this stage also is involved in the S meter in FM mode. Maybe some one on the list will have info on that modification to help sort it out. PS: Your post to the list contained a number of messages. It?s good to edit out the parts of a Digest you receive, or any message you reply to, that don?t relate to the topic at hand to avoid overloading mail systems of folks who have limited band width. Roy Roy Morgan k1lky68 at gmail.com K1LKY Since 1958 From k1lky68 at gmail.com Sat Jul 25 10:40:13 2015 From: k1lky68 at gmail.com (Roy Morgan) Date: Sat, 25 Jul 2015 10:40:13 -0400 Subject: [Hallicrafters] SX-62A? In-Reply-To: <1437821748.72436.YahooMailBasic@web162605.mail.bf1.yahoo.com> References: <1437821748.72436.YahooMailBasic@web162605.mail.bf1.yahoo.com> Message-ID: <6264DCC6-AA6B-4565-85A2-A54E799FD250@gmail.com> Hallicrafters folks, There is for sale on ?the auction place? an SX-62A: http://www.ebay.com/itm/291516244790 I was not familiar with this model, though I do have an SX-62. I wonder If the A version is just restyled with a slide rule dial instead of the round one or if there were any other changes. Does anyone on the list have one? Roy Roy Morgan k1lky68 at gmail.com K1LKY Since 1958 From ka1kaq at gmail.com Sat Jul 25 10:58:22 2015 From: ka1kaq at gmail.com (Todd, KA1KAQ) Date: Sat, 25 Jul 2015 10:58:22 -0400 Subject: [Hallicrafters] SX-62A? In-Reply-To: <6264DCC6-AA6B-4565-85A2-A54E799FD250@gmail.com> References: <1437821748.72436.YahooMailBasic@web162605.mail.bf1.yahoo.com> <6264DCC6-AA6B-4565-85A2-A54E799FD250@gmail.com> Message-ID: Roy - All of the SX-62* family have the same slide rule dial, though some early models had colored station indications for certain bands/frequencies. You're probably thinking of the SX-42. The 62 was more of a consumer entertainment model, lacking bandspread and a BFO. It was a successful model that continued into the early 60s, culminating with the B model which had the later large-flute type knobs used on the SX-115 etc. Aside from the typical aging component issues, their biggest weakness is the back-painted dial. Finding one with all its paint in good shape can be challenging. They are wonderful sets. I have a B which is set up in the den/office area sitting atop a large Collins lobby speaker cabinet with a 15" Jensen inside. The push-pull output really makes it sing, and my daughter loves spinning the tuning knob. It gets regular FM use, and occasional SWL work. It won't do anything your SX-42 can't do. The major difference is a much cooler band-in-use dial display. One of my favorites. ~ Todd/KAQ On Sat, Jul 25, 2015 at 10:40 AM, Roy Morgan wrote: > Hallicrafters folks, > > There is for sale on ?the auction place? an SX-62A: > > http://www.ebay.com/itm/291516244790 > > I was not familiar with this model, though I do have an SX-62. > I wonder If the A version is just restyled with a slide rule dial instead > of the round one or if there were any other changes. > > Does anyone on the list have one? > > Roy > > > Roy Morgan > k1lky68 at gmail.com > K1LKY Since 1958 > > ______________________________________________________________ > 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 hallicrafters at mailman.qth.net Sat Jul 25 11:15:49 2015 From: hallicrafters at mailman.qth.net (DJ via Hallicrafters) Date: Sat, 25 Jul 2015 08:15:49 -0700 Subject: [Hallicrafters] SX-42 - trouble shooting weak and intermittent performance. In-Reply-To: Message-ID: <1437837349.44782.YahooMailBasic@web162603.mail.bf1.yahoo.com> Hi, Yeah, I caught that "extra" from the digest but it was too late, anyway thanks... Did the PHONO input thing... audio is working! I guess its off to the RF and or the IF. These schematics are horrible. I'll see what else I can accomplish today. Keep the ideas coming. Anybody have voltage specs for the tube pins? Best Regards, Douglas ------------------------------------------------ END OF MESSAGE -------------------------------------------- On Sat, 7/25/15, Roy Morgan wrote: Subject: Re: [Hallicrafters] SX-42 - trouble shooting weak and intermittent performance. To: "DJ" Cc: hallicrafters at mailman.qth.net Date: Saturday, July 25, 2015, 5:27 PM On Jul 25, 2015, at 6:55 AM, DJ via Hallicrafters wrote: > ...I broke out the SX-62 and the SX-42 and fired them up?. The 42 is not exactly dead but is experiencing some problems. Douglas, My guess is that the SX-42 suffers from one fault, since you did a complete job of overhaul earlier. > ...I have my trusty Heathkit VTVM so I should be able to hone in on the problem and get her back up to speed. I think so, too.? The VTVM is perhaps the single most valuable test item. > 1. Audio intermittent and weak. Audio is about 1/2 to a 1/4 of what it should be when normal. Sometime the audio just just comes on but never at full Here is an odd idea:? It seems that you may not have a signal generator, audio or RF.? Run a (shielded) wire from the top of the volume control in the SX-62 over to the top of the volume control in the SX-42.? Pull the previous tube in the SX-42 and see if you can get similar audio from both radios, fed from the working SX-62.? (Memory is faint: do either of these radios have a ?Phono input??? If so, that could be used as audio input in the SX-42.)? This will tell you if the trouble in the SX-42 is in the audio section or earlier in the radio. > 2. Weak reception/ insensitivity. > 3. S/FM meter appears to not be working. These two combined hint at a trouble in the RF or IF section. > So far I've replaced all the tubes with the ones from the 62 and back again. These all seem to be fine. A very good starting step. > ...the 7A4 has been replaced with a 7G7 and modified accordingly. The radio works with this and I left it alone rather than change it back. I see from your website that the 7A4 triode was the BFO tube, and the 7G7 pentode would produce more gain and perhaps more reliable operation.? If it used to work as is, just see if it is working still.? You report that this stage also is involved in the S meter in FM mode.? Maybe some one on the list will have info on that modification to help sort it out. PS: Your post to the list contained a number of messages. It?s good to? edit out the parts of a Digest you receive, or any message you reply to, that don?t relate to the topic at hand to avoid overloading mail systems of folks who have limited band width. Roy Roy Morgan k1lky68 at gmail.com K1LKY Since 1958 From elespe at lisco.com Sat Jul 25 11:35:25 2015 From: elespe at lisco.com (Paul Kraemer) Date: Sat, 25 Jul 2015 10:35:25 -0500 Subject: [Hallicrafters] SX-62A? In-Reply-To: References: <1437821748.72436.YahooMailBasic@web162605.mail.bf1.yahoo.com><6264DCC6-AA6B-4565-85A2-A54E799FD250@gmail.com> Message-ID: <63D8A37493C44246A0EE73CE62287942@PaulKraemerPC> No BFO? What is the CW position on the reception switch for? Paul K0UYA -----Original Message----- From: Todd, KA1KAQ Sent: Saturday, July 25, 2015 9:58 AM To: Roy Morgan Cc: Hallicrafters Subject: Re: [Hallicrafters] SX-62A? Roy - All of the SX-62* family have the same slide rule dial, though some early models had colored station indications for certain bands/frequencies. You're probably thinking of the SX-42. The 62 was more of a consumer entertainment model, lacking bandspread and a BFO. It was a successful model that continued into the early 60s, culminating with the B model which had the later large-flute type knobs used on the SX-115 etc. Aside from the typical aging component issues, their biggest weakness is the back-painted dial. Finding one with all its paint in good shape can be challenging. They are wonderful sets. I have a B which is set up in the den/office area sitting atop a large Collins lobby speaker cabinet with a 15" Jensen inside. The push-pull output really makes it sing, and my daughter loves spinning the tuning knob. It gets regular FM use, and occasional SWL work. It won't do anything your SX-42 can't do. The major difference is a much cooler band-in-use dial display. One of my favorites. ~ Todd/KAQ On Sat, Jul 25, 2015 at 10:40 AM, Roy Morgan wrote: > Hallicrafters folks, > > There is for sale on ?the auction place? an SX-62A: > > http://www.ebay.com/itm/291516244790 > > I was not familiar with this model, though I do have an SX-62. > I wonder If the A version is just restyled with a slide rule dial instead > of the round one or if there were any other changes. > > Does anyone on the list have one? > > Roy > > > Roy Morgan > k1lky68 at gmail.com > K1LKY Since 1958 > > ______________________________________________________________ > 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 1oldlens1 at ix.netcom.com Sat Jul 25 11:43:56 2015 From: 1oldlens1 at ix.netcom.com (Richard Knoppow) Date: Sat, 25 Jul 2015 08:43:56 -0700 Subject: [Hallicrafters] SX-62A? In-Reply-To: <6264DCC6-AA6B-4565-85A2-A54E799FD250@gmail.com> References: <1437821748.72436.YahooMailBasic@web162605.mail.bf1.yahoo.com> <6264DCC6-AA6B-4565-85A2-A54E799FD250@gmail.com> Message-ID: <55B3AEBC.5070705@ix.netcom.com> Both versions have the same kind of dial. The A has a conventional knob for the band switch where the earlier one has a metal lever type knob. There are almost certainly some internal changes since Hallicrafters frequently updated models to make them cheaper to manufacture and sometimes have better performance. On 7/25/2015 7:40 AM, Roy Morgan wrote: > Hallicrafters folks, > > There is for sale on ?the auction place? an SX-62A: > > http://www.ebay.com/itm/291516244790 > > I was not familiar with this model, though I do have an SX-62. > I wonder If the A version is just restyled with a slide rule dial instead of the round one or if there were any other changes. > > Does anyone on the list have one? > > Roy > > > Roy Morgan > k1lky68 at gmail.com > K1LKY Since 1958 > > ______________________________________________________________ > 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 cateswa at msn.com Sat Jul 25 11:56:22 2015 From: cateswa at msn.com (Walt Cates) Date: Sat, 25 Jul 2015 10:56:22 -0500 Subject: [Hallicrafters] SX-42 - trouble shooting weak and intermittent performance. In-Reply-To: <1437837349.44782.YahooMailBasic@web162603.mail.bf1.yahoo.com> References: , <1437837349.44782.YahooMailBasic@web162603.mail.bf1.yahoo.com> Message-ID: Have you tried http://bama.edebris.com/manuals/hallicra/sx42sams/ This is a pdf of the sams photofact it is a little more readable. Best Regards, Walt Cates, WD0GOF Your past is irrevocable. Your present is where you are now. Your future is determined by your now. > Date: Sat, 25 Jul 2015 08:15:49 -0700 > To: Hallicrafters at mailman.qth.net > CC: k1lky68 at gmail.com > Subject: Re: [Hallicrafters] SX-42 - trouble shooting weak and intermittent performance. > From: hallicrafters at mailman.qth.net > > > Hi, > > Yeah, I caught that "extra" from the digest but it was too late, anyway thanks... > > Did the PHONO input thing... audio is working! > > I guess its off to the RF and or the IF. These schematics are horrible. > > I'll see what else I can accomplish today. > > Keep the ideas coming. Anybody have voltage specs for the tube pins? > > Best Regards, > Douglas > > ------------------------------------------------ > END OF MESSAGE > > -------------------------------------------- From k1lky68 at gmail.com Sat Jul 25 11:08:14 2015 From: k1lky68 at gmail.com (Roy Morgan) Date: Sat, 25 Jul 2015 11:08:14 -0400 Subject: [Hallicrafters] SX-62A? In-Reply-To: References: <1437821748.72436.YahooMailBasic@web162605.mail.bf1.yahoo.com> <6264DCC6-AA6B-4565-85A2-A54E799FD250@gmail.com> Message-ID: On Jul 25, 2015, at 10:58 AM, Todd, KA1KAQ wrote: > Roy - > > All of the SX-62* family have the same slide rule dial, ... You're probably thinking of the SX-42. > The 62 was more of a consumer entertainment model, lacking bandspread and a BFO. Thanks to Todd and Walt for info on the SX-62 radios. Yes, indeed it is the SX-42 that I was thinking of with the round dial. In the past I overhauled one of these. > ... their biggest weakness is the back-painted dial. Finding one with all its paint in good shape can be challenging. The one on ebay now appears to have a very fine dial. Let?s hope it survives shipping! > http://www.ebay.com/itm/291516244790 Roy Roy Morgan k1lky68 at gmail.com K1LKY Since 1958 From hallicrafters at mailman.qth.net Sat Jul 25 13:40:47 2015 From: hallicrafters at mailman.qth.net (DJ via Hallicrafters) Date: Sat, 25 Jul 2015 10:40:47 -0700 Subject: [Hallicrafters] SX-42 - trouble shooting weak and intermittent performance. In-Reply-To: Message-ID: <1437846047.42644.YahooMailBasic@web162606.mail.bf1.yahoo.com> Hi, Thanks. I have it all, even a reproduction manual. Probably need to make 2'x3' poster and hang it on the wall. Best Regards, Douglas ------------------------------------------------ END OF MESSAGE -------------------------------------------- On Sat, 7/25/15, Walt Cates wrote: Subject: RE: [Hallicrafters] SX-42 - trouble shooting weak and intermittent performance. To: "DJ" , "hallicrafters" Date: Saturday, July 25, 2015, 6:56 PM #yiv3823767299 #yiv3823767299 -- .yiv3823767299hmmessage P { margin:0px;padding:0px;} #yiv3823767299 body.yiv3823767299hmmessage { font-size:12pt;font-family:Calibri;} #yiv3823767299 Have you tried http://bama.edebris.com/manuals/hallicra/sx42sams/?This is a pdf of the sams photofact it is a little more readable.? ? Best Regards, Walt Cates, WD0GOF? Your past is irrevocable. Your present is where you are now. Your future is determined by your now. ? > Date: Sat, 25 Jul 2015 08:15:49 -0700 > To: Hallicrafters at mailman.qth.net > CC: k1lky68 at gmail.com > Subject: Re: [Hallicrafters] SX-42 - trouble shooting weak and intermittent performance. > From: hallicrafters at mailman.qth.net > > > Hi, > > Yeah, I caught that "extra" from the digest but it was too late, anyway thanks... > > Did the PHONO input thing... audio is working! > > I guess its off to the RF and or the IF. These schematics are horrible. > > I'll see what else I can accomplish today. > > Keep the ideas coming. Anybody have voltage specs for the tube pins? > > Best Regards, > Douglas > > ------------------------------------------------ > END OF MESSAGE > > -------------------------------------------- From dfischer at usol.com Sat Jul 25 19:13:53 2015 From: dfischer at usol.com (Duane Fischer, W8DBF) Date: Sat, 25 Jul 2015 18:13:53 -0500 Subject: [Hallicrafters] Vintage Hallicrafters SSB Nets References: <862390486.65657422.1437169134283.JavaMail.zimbra@cableone.net> Message-ID: <045d01d0c731$307085f0$c454e8cc@hpdc5100mt> The 40M Net is on Saturday from 12:30 - 2:00 PM EST on 7.280 MHZLSB. The Sunday 20M Net is gone. I retired after fifteen years and nobody picked it up. However, I have had many requests to restart the Global Glow Net. It will NOT be on 40M on Wednesday nights, (unless someone can find us an open frequency!), it will be on every other Sunday starting on August 9th. It will be on 14.292 MHZ from 12:30 - 1:30 PM EST/EDT. Hear you on one or the other - ----- Original Message ----- From: "ED MCKIE" To: Cc: "kb5gt" Sent: Friday, July 17, 2015 4:38 PM Subject: [Hallicrafters] Vintage Hallicrafters SSB Nets > Does anyone know if the Hallicrafters Vintage SSB nets are still active? > If they are, what are freqs and times? > > Thanks, > Ed, KB5GT > > > > ______________________________________________________________ > 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 > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2012.0.2247 / Virus Database: 4311/7984 - Release Date: 10/31/14 > Internal Virus Database is out of date. > ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2247 / Virus Database: 4311/7984 - Release Date: 10/31/14 Internal Virus Database is out of date. From dfischer at usol.com Sat Jul 25 19:28:17 2015 From: dfischer at usol.com (Duane Fischer, W8DBF) Date: Sat, 25 Jul 2015 18:28:17 -0500 Subject: [Hallicrafters] Tod and Greg Message-ID: <000201d0c731$c581afc0$c454e8cc@hpdc5100mt> Guys, enough is enough! This kind of nonsense has no place on this list. End it 'or' you will be removed! Duane Fischer, W8DBF - WPE8CXO E-Mail: dfischer at usol.com Hallicrafters web site: www.w9wze.net HHRP web site: hhrp.w9wze.net ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2247 / Virus Database: 4311/7984 - Release Date: 10/31/14 Internal Virus Database is out of date. From hallicrafters at mailman.qth.net Fri Jul 31 19:19:21 2015 From: hallicrafters at mailman.qth.net (Jammer via Hallicrafters) Date: Fri, 31 Jul 2015 19:19:21 -0400 Subject: [Hallicrafters] a request In-Reply-To: References: Message-ID: <14ee669a9f7-59c9-264dc@webprd-a67.mail.aol.com> snip 'n edit that text before you hit send, eh?? I know bits R free but, jeez Louise.. makes it hard to see the gold amongst the dross! 73, Terry KC9KEL

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