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Restored Philco 46-420 code 121 has slight low pitch hum.
#8

So the original 2-section electrolytic cap had the red and orange (+ leads) going to pin 4 and pin 8 of the rectifier 35Z5 and the common black lead going to B-.

All I did was dump the original and install 2 20 mfd 160V electrolytics and run one + lead to pin 4 of 35Z5 and the other + lead to pin 8 of 35Z5 and ran both - leads together to B-.

That's the way the radio was wired originally.


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RE: Restored Philco 46-420 code 121 has slight low pitch hum. - by terrylett - 03-17-2019, 10:31 PM



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