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38-690 Code 125
RGK20m3
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Posts: 62
Threads: 5
Joined: Apr 2021
City: CLARKSTON State, Province, Country: MI
#54

01-05-2022, 02:57 PM
As a side, I monitored the voltages on the 1st and 2nd IF tube grids; they both were around -2.4v and did not seem to vary with trimming. I kinda thought that 77 should vary the signal to the IF AVC tube, but perhaps the signal was not strong enough.
I might try a couple of diodes in that tube base, don’t know if I have any Schottky type.....
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Messages In This Thread
38-690 Code 125 - by RGK20m3 - 11-24-2021, 08:26 PM
RE: 38-690 Code 125 - by klondike98 - 11-24-2021, 09:01 PM
RE: 38-690 Code 125 - by RGK20m3 - 11-26-2021, 05:41 PM
RE: 38-690 Code 125 - by klondike98 - 11-26-2021, 06:21 PM
RE: 38-690 Code 125 - by RGK20m3 - 11-26-2021, 10:29 PM
RE: 38-690 Code 125 - by RGK20m3 - 12-02-2021, 07:35 PM
RE: 38-690 Code 125 - by morzh - 12-02-2021, 08:09 PM
RE: 38-690 Code 125 - by Ron Ramirez - 12-02-2021, 08:58 PM
RE: 38-690 Code 125 - by morzh - 12-02-2021, 09:02 PM
RE: 38-690 Code 125 - by radiorich - 12-02-2021, 10:01 PM
RE: 38-690 Code 125 - by Ron Ramirez - 12-02-2021, 11:41 PM
RGK20m3 - by RGK20m3 - 12-05-2021, 06:03 PM
RE: 38-690 Code 125 - by David - 12-05-2021, 07:19 PM
RE: 38-690 Code 125 - by klondike98 - 12-09-2021, 08:08 PM
RGK20m3 - by RGK20m3 - 12-10-2021, 02:54 PM
RE: 38-690 Code 125 - by Mondial - 12-10-2021, 06:42 PM
RE: 38-690 Code 125 - by RGK20m3 - 12-10-2021, 07:15 PM
RE: 38-690 Code 125 - by morzh - 12-10-2021, 07:27 PM
RE: 38-690 Code 125 - by Mondial - 12-10-2021, 07:40 PM
RE: 38-690 Code 125 - by mikethedruid - 12-10-2021, 08:01 PM
RGK20m3 - by RGK20m3 - 12-10-2021, 10:09 PM
RGK20m3 - by RGK20m3 - 12-11-2021, 12:14 PM
RE: 38-690 Code 125 - by Mondial - 12-11-2021, 01:58 PM
RGK20m3 - by RGK20m3 - 12-11-2021, 05:41 PM
RE: 38-690 Code 125 - by Mondial - 12-11-2021, 06:48 PM
RE: 38-690 Code 125 - by tbone - 12-12-2021, 02:27 PM
RGK20m3 - by RGK20m3 - 12-13-2021, 08:24 PM
RE: 38-690 Code 125 - by Mondial - 12-14-2021, 10:22 AM
RE: 38-690 Code 125 - by morzh - 12-14-2021, 12:40 PM
RE: 38-690 Code 125 - by Ron Ramirez - 12-14-2021, 01:40 PM
RE: 38-690 Code 125 - by RGK20m3 - 12-14-2021, 03:25 PM
RE: 38-690 Code 125 - by morzh - 12-14-2021, 03:35 PM
RE: 38-690 Code 125 - by Mondial - 12-14-2021, 04:06 PM
RE: 38-690 Code 125 - by Ron Ramirez - 12-14-2021, 04:42 PM
RGK20m3 - by RGK20m3 - 12-14-2021, 10:32 PM
RE: 38-690 Code 125 - by Ron Ramirez - 12-14-2021, 10:58 PM
RGK20m3 - by RGK20m3 - 12-15-2021, 09:01 AM
RGK20m3 - by RGK20m3 - 12-15-2021, 11:55 AM
RE: 38-690 Code 125 - by Mondial - 12-15-2021, 03:02 PM
RGK20m3 - by RGK20m3 - 12-15-2021, 05:14 PM
RE: 38-690 Code 125 - by RGK20m3 - 01-02-2022, 06:05 PM
RE: 38-690 Code 125 - by Greg - 01-02-2022, 06:42 PM
RE: 38-690 Code 125 - by Mondial - 01-02-2022, 07:59 PM
RGK20m3 - by RGK20m3 - 01-03-2022, 12:36 PM
RE: 38-690 Code 125 - by Mondial - 01-03-2022, 01:43 PM
RGK20m3 - by RGK20m3 - 01-04-2022, 09:12 AM
RE: 38-690 Code 125 - by Mondial - 01-04-2022, 12:21 PM
RE: 38-690 Code 125 - by RGK20m3 - 01-04-2022, 07:01 PM
RGK20m3 - by RGK20m3 - 01-05-2022, 12:36 PM
RE: 38-690 Code 125 - by Mondial - 01-05-2022, 01:56 PM
RGK20m3 - by RGK20m3 - 01-05-2022, 02:57 PM
RE: 38-690 Code 125 - by Mondial - 01-05-2022, 05:59 PM
RGK20m3 - by RGK20m3 - 01-06-2022, 07:39 PM
RE: 38-690 Code 125 - by Mondial - 01-07-2022, 11:44 AM
RE: 38-690 Code 125 - by RGK20m3 - 01-07-2022, 01:03 PM
RGK20m3 - by RGK20m3 - 01-07-2022, 01:32 PM
RE: 38-690 Code 125 - by Mondial - 01-07-2022, 01:49 PM
RGK20m3 - by RGK20m3 - 01-07-2022, 02:31 PM
RGK20m3 - by RGK20m3 - 01-29-2022, 01:25 PM
RE: 38-690 Code 125 - by Brad Winder - 02-02-2022, 08:30 PM
RGK20m3 - by RGK20m3 - 02-04-2022, 07:41 PM
RE: 38-690 Code 125 - by Brad Winder - 02-06-2022, 02:53 PM
RE: 38-690 Code 125 - by RGK20m3 - 02-07-2022, 11:26 AM
38-690 RF Alignment - by RGK20m3 - 12-09-2021, 02:54 PM
RE: 38-690 RF Alignment - by morzh - 12-09-2021, 04:16 PM
RE: 38-690 RF Alignment - by RGK20m3 - 12-09-2021, 04:40 PM



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  2. Philco Radio Discussions
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