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Philco 41-280 NO Sound
vecher
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Posts: 933
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#11

05-02-2021, 06:56 PM
(1) Is the hum a constant level regardless of volume control setting... or does it vary with the VC setting?
Constant...

(2) Is the hum very loud or is it just a "background" type noise?
Not real load but annoying

(3) Is the hum a 60Hz tone or a 120 Hz tone?

Seems like 60hz..

Does hum go away with volume turned all the way down? NO Constant hum hum doesn't get loader with volume

Do both #41 tubes have B+ voltage an pin #2? YES 183 volts, 181 volts
Does pin #3 of each #41 tube have voltage? YES 185 volts, 171 volts

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Messages In This Thread
Philco 41-280 NO Sound - by vecher - 04-17-2021, 01:49 PM
RE: Philco 41-280 NO Sound - by morzh - 04-17-2021, 03:18 PM
RE: Philco 41-280 NO Sound - by vecher - 04-17-2021, 05:31 PM
RE: Philco 41-280 NO Sound - by morzh - 04-17-2021, 07:39 PM
RE: Philco 41-280 NO Sound - by vecher - 04-17-2021, 11:10 PM
RE: Philco 41-280 NO Sound - by unclevinny86 - 04-18-2021, 07:22 AM
RE: Philco 41-280 NO Sound - by vecher - 05-01-2021, 02:49 PM
RE: Philco 41-280 NO Sound - by Radioroslyn - 05-01-2021, 04:01 PM
RE: Philco 41-280 NO Sound - by morzh - 05-01-2021, 07:21 PM
RE: Philco 41-280 NO Sound - by vecher - 05-02-2021, 03:29 PM
RE: Philco 41-280 NO Sound - by vecher - 05-02-2021, 06:56 PM



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