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Philco 37-650 electronics help
#4

Welcome to the Forum. It sounds like you are well on your way. One caution for future radios that may save some hair pulling is to refrain from powering up a unit until the electrolytic caps are replaced. The dim bulb will guard against a short or defective power transformer but if the B+ is high it could damage other components when tubes conduct more than they should.

Like Bob said, start with the electrolytic caps, replacing them with aluminum electrolytic. They should fit inside the cans nicely. Then do the paper caps. The 2 on the primary of the power transformer should be Y2 safety caps. As you replace caps you can test resistors and replace the ones that are out of tolerance. I use 10%. Clean switches and controls next. The SW bands are usually not working because of the band switch or oscillator trouble. There's a lot of help here so go ahead and ask.

Rod


Messages In This Thread
Philco 37-650 electronics help - by bruderhaus - 06-27-2020, 02:50 PM
RE: Philco 37-650 electronics help - by morzh - 06-27-2020, 04:42 PM
RE: Philco 37-650 electronics help - by RodB - 06-27-2020, 05:17 PM
RE: Philco 37-650 electronics help - by morzh - 06-27-2020, 08:45 PM
RE: Philco 37-650 electronics help - by rfeenstra - 06-27-2020, 09:21 PM
RE: Philco 37-650 electronics help - by David - 06-29-2020, 03:40 PM
RE: Philco 37-650 electronics help - by RodB - 07-23-2020, 05:11 PM



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