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37-640 wiring question
#15

Happy Memorial Day Phorum members. I have finally goten my 37-640 back together. I put it on a my variac and slowly turned up the voltage whlle watching the elctronic watt meter set to the amps function. At 120 volts, my amp reading stayed at 0.06 which I think is ok. I connected up a 10 foot stranded 16 gauge wire for an antenna but could not get any reception. I think this is probably because I had done so much component replacement including replacing the antenna coil assembly, that an alighnment would probably help. In the allighnment instructions, going to step 1 where I set the radio dial at 550kc and set the sig gen at 470kc, I can hear the tone but it not not at 470. Can someone tell me what adjustments will bring me to the 470. Is it the ANT 1500kc, the RF 1500kc or the OSC 600kc or 1600kcthat are on the bottom of the chassis? Thanks as always, John


Messages In This Thread
37-640 wiring question - by georgetownjohn - 04-21-2026, 02:50 PM
RE: 37-640 wiring question - by morzh - 04-21-2026, 03:12 PM
RE: 37-640 wiring question - by RodB - 04-21-2026, 04:17 PM
RE: 37-640 wiring question - by georgetownjohn - 04-21-2026, 08:00 PM
RE: 37-640 wiring question - by morzh - 04-21-2026, 08:01 PM
RE: 37-640 wiring question - by RodB - 04-22-2026, 06:40 PM
RE: 37-640 wiring question - by georgetownjohn - 04-23-2026, 10:26 AM
RE: 37-640 wiring question - by georgetownjohn - 04-23-2026, 10:50 AM
RE: 37-640 IF trnsf question - by georgetownjohn - 04-27-2026, 01:08 PM
RE: 37-640 wiring question - by morzh - 04-27-2026, 01:17 PM
RE: 37-640 wiring question - by RodB - 04-27-2026, 01:55 PM
RE: 37-640 wiring question - by morzh - 04-27-2026, 02:00 PM
RE: 37-640 wiring question - by georgetownjohn - 04-27-2026, 02:30 PM
RE: 37-640 wiring question - by georgetownjohn - 05-24-2026, 09:39 PM
RE: 37-640 wiring question - by morzh - 05-25-2026, 11:44 AM
RE: 37-640 wiring question - by georgetownjohn - 05-26-2026, 10:14 AM
RE: 37-640 wiring question - by morzh - 05-26-2026, 10:32 AM
RE: 37-640 wiring question - by georgetownjohn - 05-26-2026, 01:58 PM
RE: 37-640 wiring question - by morzh - 05-26-2026, 02:29 PM
RE: 37-640 wiring question - by georgetownjohn - 05-26-2026, 03:46 PM
RE: 37-640 wiring question - by morzh - 05-26-2026, 03:59 PM
RE: 37-640 wiring question - by georgetownjohn - 05-27-2026, 01:03 PM
RE: 37-640 wiring question - by morzh - 05-27-2026, 01:42 PM
RE: 37-640 wiring question - by georgetownjohn - 05-29-2026, 03:54 PM
RE: 37-640 wiring question - by georgetownjohn - 05-29-2026, 04:05 PM
RE: 37-640 wiring question - by radiorich - 06-04-2026, 08:53 PM
RE: 37-640 wiring question - by RodB - 06-04-2026, 09:00 PM
RE: 37-640 wiring question - by RodB - 06-04-2026, 09:04 PM
RE: 37-640 wiring question - by radiorich - 06-04-2026, 09:46 PM
RE: 37-640 wiring question - by georgetownjohn - 06-05-2026, 07:11 PM
RE: 37-640 wiring question - by georgetownjohn - 06-07-2026, 03:51 PM
RE: 37-640 wiring question - by morzh - 06-07-2026, 06:51 PM
RE: 37-640 wiring question - by georgetownjohn - 06-07-2026, 08:28 PM
RE: 37-640 wiring question - by georgetownjohn - 06-07-2026, 08:30 PM
RE: 37-640 wiring question - by morzh - 06-07-2026, 09:22 PM
RE: 37-640 wiring question - by georgetownjohn - 06-09-2026, 10:06 AM



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