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Philco 46-1209 strange behavior
morzh
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#4

06-03-2025, 07:42 PM
It is kinda impossible for the plate to have 120V with the tube in and have it not with the tube out, short of the tube having some shorts inside in a very improbable way.

The B+ is supplied through the field coil of the speaker, plugged between the plusses of 10uF and 25uF caps.
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Messages In This Thread
Philco 46-1209 strange behavior - by sq65 - 06-03-2025, 12:18 PM
RE: Philco 46-1209 strange behavior - by morzh - 06-03-2025, 03:47 PM
RE: Philco 46-1209 strange behavior - by sq65 - 06-03-2025, 04:13 PM
RE: Philco 46-1209 strange behavior - by morzh - 06-03-2025, 07:42 PM
RE: Philco 46-1209 strange behavior - by sq65 - 06-03-2025, 07:55 PM
RE: Philco 46-1209 strange behavior - by sq65 - 06-04-2025, 09:45 AM
RE: Philco 46-1209 strange behavior - by morzh - 06-04-2025, 10:47 AM
RE: Philco 46-1209 strange behavior - by sq65 - 06-05-2025, 10:22 AM
RE: Philco 46-1209 strange behavior - by morzh - Yesterday, 08:47 AM
RE: Philco 46-1209 strange behavior - by sq65 - Yesterday, 09:15 AM



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