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Philco 42-380 120 Hz Hum
Radioroslyn
Phorum Expert
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Posts: 7,285
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
#10

12-28-2017, 03:34 PM
OK so if there was an issue w/the p/s filtering the ripple would be throughout the set and would not be effected by the volume control. +1 Mike I thinking that it's rf interference from somewhere. OBTW your p/s doesn't use a full wave bridge circuit, that would have four diodes. Just a full wave.

GL
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry
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Messages In This Thread
Philco 42-380 120 Hz Hum - by Jason63 - 12-27-2017, 05:31 PM
RE: Philco 42-380 120 Hz Hum - by morzh - 12-27-2017, 06:07 PM
RE: Philco 42-380 120 Hz Hum - by Jason63 - 12-27-2017, 08:38 PM
RE: Philco 42-380 120 Hz Hum - by Radioroslyn - 12-27-2017, 09:03 PM
RE: Philco 42-380 120 Hz Hum - by klondike98 - 12-27-2017, 10:12 PM
RE: Philco 42-380 120 Hz Hum - by Jason63 - 12-28-2017, 11:01 AM
RE: Philco 42-380 120 Hz Hum - by morzh - 12-28-2017, 12:47 PM
RE: Philco 42-380 120 Hz Hum - by Jason63 - 12-28-2017, 03:08 PM
RE: Philco 42-380 120 Hz Hum - by morzh - 12-28-2017, 03:31 PM
RE: Philco 42-380 120 Hz Hum - by Radioroslyn - 12-28-2017, 03:34 PM
RE: Philco 42-380 120 Hz Hum - by Jason63 - 12-29-2017, 06:55 PM



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  1. The PHILCO Phorum
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