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CR220

04-02-2016, 01:21 PM
What is the difference between Philco part number 3615SU and 3615OSU? These are both bakelite block capacitors.

Stan the Man

04-02-2016, 01:40 PM
The "O" designated a block with high melting point wax.. No "O", standard wax..
http://www.philcoradio.com/tech/images/bakelite.pdf
Stan

gregb

04-02-2016, 01:41 PM
According to the Philco Condensers and More book I have they are the same thing, a 0.05uf capacitor between the two outside terminals.

Gregb
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