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640b e-cap values
WyTex
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Posts: 289
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Joined: Jan 2014
City: Jeffersonville State, Province, Country: PA
#1

03-03-2023, 11:01 AM
Morning guys -

Found this nice looking Philco at an antique shop last month and decided to bring it home as a birthday present to myself.   

https://philcoradio.com/library/download...l.%201.pdf

After rebuilding the bakelite blocks, checking resistors, tubes, etc, this set has hum that does not change with volume.  As I was about to swap out tubes one by one I noticed part #68, a 3 part electrolytic can on top comprising 2mfd, 2mfd and 1mfd e-caps.  I missed this and suspect it could be the hum source.  Been unable to locate these value electrolytics so far.  Are there alternatives for 1mfd and 2 mfd, 450v caps?  AES has these but only at 50v rating.  

Looking for guidance.  
Thanks very much fellas,
Paul


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Messages In This Thread
640b e-cap values - by WyTex - 03-03-2023, 11:01 AM
RE: 640b e-cap values - by Brad Winder - 03-03-2023, 11:17 AM
RE: 640b e-cap values - by morzh - 03-03-2023, 12:57 PM
RE: 640b e-cap values - by WyTex - 03-03-2023, 03:04 PM



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