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Philco 38-690 electrolytic capacitors--UPDATE
retiredinprescott
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Posts: 57
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Joined: Feb 2009
City: Prescott AZ
#7

02-21-2014, 12:35 AM
i will proceed as carefully as I can with this set to restore it.
Three of the electrolytic cans are missing. One of the two chokes in the power supply has been replaced with an 8 H choke which does not look like the original. Also, and sadly, seven of the tube shields and bases have been removed from the chassis and metal tubes were used which, presumably, did not require the tube shields. If I can get the set working then I will go about trying to replace the removed tube shield bases.

There are two input caps on this power supply; one for each 5X4tube The rectifier for the amplifier and output tubes seems to have two 8uf input caps in parallel so maybe use a 16uF at 500V?

The second 5X4 rectifier has a single 8uF input cap. There are a lot of electrolytics in this set.

http://www.nostalgiaair.org/PagesByModel...013255.pdf
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RE: Philco 38-690 electrolytic capacitors - by retiredinprescott - 02-21-2014, 12:35 AM



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