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Philco 38-690 restoration
#20

Ah, I found that the variable IF control needs to be to the far left. If I put it there, then connect the antenna to the mixer grid, it receives. That proves that the IF is working. I tweaked the various transformers just by ear on a strong local station to get them closer to where they will be when I align it.

When I touch the antenna to the RF tube grid, I get noise, but no reception. So, I've got to look at the antenna coil, RF coil, and band switch. I may also shorten the leads on some of the replacement capacitors put in by the other guy, but want to avoid removing the RF deck unless it can not be avoided.

Web site: http://www.masekconsulting.net
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Messages In This Thread
Philco 38-690 restoration - by FStephenMasek - 04-18-2011, 09:30 PM
RE: Philco 38-690 restoration - by FStephenMasek - 04-13-2013, 12:47 PM
RE: Philco 38-690 restoration - by FStephenMasek - 04-13-2013, 09:16 PM
RE: Philco 38-690 restoration - by morzh - 04-13-2013, 09:22 PM
RE: Philco 38-690 restoration - by FStephenMasek - 02-17-2014, 12:35 PM
RE: Philco 38-690 restoration - by morzh - 02-17-2014, 12:43 PM
RE: Philco 38-690 restoration - by FStephenMasek - 02-17-2014, 10:13 PM
RE: Philco 38-690 restoration - by morzh - 02-17-2014, 10:16 PM
RE: Philco 38-690 restoration - by FStephenMasek - 06-22-2014, 12:04 AM
RE: Philco 38-690 restoration - by morzh - 06-22-2014, 10:56 AM
RE: Philco 38-690 restoration - by FStephenMasek - 06-22-2014, 01:01 PM
RE: Philco 38-690 restoration - by FStephenMasek - 06-22-2014, 07:18 PM
RE: Philco 38-690 restoration - by morzh - 06-22-2014, 08:44 PM
RE: Philco 38-690 restoration - by gregb - 06-22-2014, 08:47 PM
RE: Philco 38-690 restoration - by PhilcoJohn - 06-23-2014, 05:47 PM
RE: Philco 38-690 restoration - by morzh - 06-23-2014, 05:53 PM
RE: Philco 38-690 restoration - by FStephenMasek - 07-06-2014, 01:40 PM
RE: Philco 38-690 restoration - by morzh - 07-06-2014, 02:13 PM
RE: Philco 38-690 restoration - by FStephenMasek - 07-06-2014, 02:46 PM
RE: Philco 38-690 restoration - by morzh - 07-06-2014, 02:51 PM
RE: Philco 38-690 restoration - by FStephenMasek - 07-10-2014, 04:32 PM
RE: Philco 38-690 restoration - by morzh - 07-10-2014, 05:32 PM
RE: Philco 38-690 restoration - by FStephenMasek - 11-06-2014, 01:27 AM
RE: Philco 38-690 restoration - by sam - 11-06-2014, 03:57 AM
RE: Philco 38-690 restoration - by 462ron - 11-06-2014, 01:13 PM
RE: Philco 38-690 restoration - by klondike98 - 11-06-2014, 02:08 PM
RE: Philco 38-690 restoration - by morzh - 11-06-2014, 02:35 PM
RE: Philco 38-690 restoration - by FStephenMasek - 11-11-2014, 12:57 PM
RE: Philco 38-690 restoration - by morzh - 11-11-2014, 01:17 PM
Re: Philco 38-690 restoration - by Ron Ramirez - 04-19-2011, 10:07 AM
Re: Philco 38-690 restoration - by FStephenMasek - 04-19-2011, 12:59 PM
Re: Philco 38-690 restoration - by Ron Ramirez - 04-19-2011, 02:00 PM
Re: Philco 38-690 restoration - by FStephenMasek - 04-19-2011, 02:35 PM
Re: Philco 38-690 restoration - by Ron Ramirez - 04-19-2011, 02:47 PM
Re: Philco 38-690 restoration - by FStephenMasek - 04-20-2011, 10:47 PM
Re: Philco 38-690 restoration - by Ron Ramirez - 04-21-2011, 07:41 AM
Re: Philco 38-690 restoration - by FStephenMasek - 04-26-2011, 10:06 PM



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