Philco Model 81B

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Philco Model 81B

texan george
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Posts: 114
Threads: 6
Joined: Jul 2021
City: Pensacola State, Province, Country: FL

#30

10-23-2022, 04:45 PM

Terry,
I set the sg for 1700kc and did not get a tone at the speaker, here are the voltages
77 det/osc plate 244, screen 63, control 4.5, cathode 21
77 2nd det plate 58, screen 56, control .6, cathode 0
42 output plate 226, screen 242, control 16, cathode 0.

tried the sg at 460, radio about 550 but didn't get a tone, stated to get a tone with the sg at about 525. I did change the 4-meg resistor on the IF transformer to 2 meg as recommended earlier in the process. I also don't notice the osc on the 2nd radio test.
I guess I need to pull the osc and rewind it again. Wish I had a good guide for what post the feedback goes to, I stupidly didnt write it down when I redid it but maybe is just needs to go in the other direction.

Well that where things are as on now, what do you think?
Thanks for your help
George

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Messages In This Thread

Philco Model 81B - by texan george - 09-25-2022, 03:36 PM

RE: Philco Model 81B - by Radioroslyn - 09-25-2022, 07:49 PM

RE: Philco Model 81B - by David - 09-25-2022, 08:14 PM

RE: Philco Model 81B - by texan george - 09-25-2022, 08:24 PM

RE: Philco Model 81B - by texan george - 09-30-2022, 04:51 PM

RE: Philco Model 81B - by Radioroslyn - 09-30-2022, 10:32 PM

RE: Philco Model 81B - by texan george - 10-01-2022, 05:16 PM

RE: Philco Model 81B - by MrFixr55 - 10-01-2022, 05:40 PM

RE: Philco Model 81B - by Radioroslyn - 10-02-2022, 08:18 AM

RE: Philco Model 81B - by texan george - 10-02-2022, 08:42 AM

RE: Philco Model 81B - by falcon123 - 10-02-2022, 09:49 AM

RE: Philco Model 81B - by texan george - 10-02-2022, 01:05 PM

RE: Philco Model 81B - by Radioroslyn - 10-02-2022, 02:36 PM

RE: Philco Model 81B - by texan george - 10-02-2022, 05:05 PM

RE: Philco Model 81B - by Radioroslyn - 10-02-2022, 06:13 PM

RE: Philco Model 81B - by texan george - 10-03-2022, 01:17 PM

RE: Philco Model 81B - by radiorich - 10-03-2022, 02:30 PM

RE: Philco Model 81B - by texan george - 10-04-2022, 05:09 PM

RE: Philco Model 81B - by MrFixr55 - 10-04-2022, 10:12 PM

RE: Philco Model 81B - by texan george - 10-05-2022, 07:27 AM

RE: Philco Model 81B - by texan george - 10-21-2022, 02:55 PM

RE: Philco Model 81B - by radiorich - 10-21-2022, 03:24 PM

RE: Philco Model 81B - by Radioroslyn - 10-21-2022, 04:34 PM

RE: Philco Model 81B - by texan george - 10-22-2022, 06:26 AM

RE: Philco Model 81B - by texan george - 10-22-2022, 06:28 AM

RE: Philco Model 81B - by texan george - 10-22-2022, 02:19 PM

RE: Philco Model 81B - by texan george - 10-22-2022, 03:52 PM

RE: Philco Model 81B - by Radioroslyn - 10-22-2022, 08:43 PM

RE: Philco Model 81B - by Radioroslyn - 10-22-2022, 08:50 PM

RE: Philco Model 81B - by texan george - 10-23-2022, 04:45 PM

RE: Philco Model 81B - by Radioroslyn - 10-23-2022, 09:22 PM

RE: Philco Model 81B - by texan george - 10-25-2022, 05:46 PM

RE: Philco Model 81B - by texan george - 11-04-2022, 11:25 AM

RE: Philco Model 81B - by Radioroslyn - 11-04-2022, 12:58 PM

RE: Philco Model 81B - by RodB - 11-05-2022, 09:18 AM

RE: Philco Model 81B - by radiorich - 11-05-2022, 11:49 AM

RE: Philco Model 81B - by texan george - 11-05-2022, 03:26 PM

RE: Philco Model 81B - by texan george - 11-08-2022, 12:48 PM

RE: Philco Model 81B - by radiorich - 11-09-2022, 02:00 PM

RE: Philco Model 81B - by texan george - 11-10-2022, 12:09 PM

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