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Philco Model 38-7: what caps & resistors do fail typically?
#5

Yep the dim bulb test is OK but I'd definitely replace all those electrolytics before I did it. Since those #47 condensers each go to ground I would replace with Y safety caps. The #47 condenser is a 3793DG bakelite block capacitor. I've only seen this style in Philco's but its essentially a paper capacitor also. Here's a tutorial for taking the old caps out of that block and replacing with new ones although I'm not certain whether 2 new style Y caps will fit or whether you are trying to retain the look of the electronics or just replacing with new caps. (Restoration vs repair?) https://philcoradio.com/library/index.ph...soldering/

...and here's some wiring data on those block capacitors: https://philcoradio.com/library/index.ph...lock-data/

I usually take the block out of the set completely in order to remove the old cap and stuff in a new one.


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RE: Philco Model 38-7: what caps & resistors do fail typically? - by klondike98 - 06-17-2025, 09:18 PM



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