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Philco 38-3 hates me
RodB
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Posts: 1,135
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City: Roseville, MN
#13

05-25-2020, 09:02 AM
I think you can check pin 5 of the 6A8 for a small negative voltage to see if the oscillator is running. If its not, with the power off and broadcast selected you can monitor pin 5 to ground with an ohmmeter and move the tuning condenser through it's full range. You should see a reading of about 33K with no movement in the meter. If the meter reads zero or moves off 33K the tuning condenser oscillator plates are shorting.

Rod
(This post was last modified: 05-25-2020, 09:04 AM by RodB.)
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Messages In This Thread
Philco 38-3 hates me - by DuMont - 05-18-2020, 06:11 PM
RE: Philco 38-3 hates me - by radiodale - 05-18-2020, 07:32 PM
RE: Philco 38-3 hates me - by DuMont - 05-18-2020, 07:52 PM
RE: Philco 38-3 hates me - by morzh - 05-18-2020, 08:49 PM
RE: Philco 38-3 hates me - by DuMont - 05-18-2020, 08:57 PM
RE: Philco 38-3 hates me - by David - 05-19-2020, 10:05 AM
RE: Philco 38-3 hates me - by DuMont - 05-19-2020, 10:24 AM
RE: Philco 38-3 hates me - by David - 05-19-2020, 04:40 PM
RE: Philco 38-3 hates me - by DuMont - 05-19-2020, 04:52 PM
RE: Philco 38-3 hates me - by DuMont - 05-19-2020, 06:43 PM
RE: Philco 38-3 hates me - by DuMont - 05-19-2020, 07:24 PM
RE: Philco 38-3 hates me - by Tim Tress - 05-24-2020, 09:25 PM
RE: Philco 38-3 hates me - by RodB - 05-25-2020, 09:02 AM
RE: Philco 38-3 hates me - by captainclock1988 - 05-27-2020, 12:17 AM



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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration