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The PHILCO Phorum > Philco Radio Discussions > Philco Electronic Restoration > Condenser is a 30-4455s but schematic says it's a 30-4170???
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Guest

01-19-2008, 05:40 PM
I am about to recap my Philco 37-650, but one of the original paper caps, a 30-4455 is represented in the schematic as a 30-4170.

How can this be and which one is it? Any advice?

Thanks in advance!

Ron Ramirez

01-19-2008, 05:55 PM
It was changed from 30-4170 to 30-4455 beginning with Run 4. Both are 0.1 uF; the 30-4455 has a higher voltage rating than the 30-4170.

Replace it with a 0.1 uF, 630V film capacitor and you'll be fine.

This change, as well as many others, are outlined in my Philco Changes In Models package, available as a free download from my website.

See this page for more details.
http://philcoradio.com/phorum/showthread.php?tid=215

Guest

01-19-2008, 06:27 PM
Thanks again!
The PHILCO Phorum > Philco Radio Discussions > Philco Electronic Restoration > Condenser is a 30-4455s but schematic says it's a 30-4170???