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Philco 45 tone control caps.
morzh
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#1

06-28-2014, 05:59 PM
The 45 (butterfly) tone control's caps values are not shown in the BOM.

Typical values for several Philcos are 10nF,10nF and 15nF for three stage ones.
I inclined to think these are the same, 10nF and 15nF.

Another matter, I noticed that when using these values, the first stage takes out most of Hi and then the to others almost don't matter anymore.
Has anyone found optimal values?
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Messages In This Thread
Philco 45 tone control caps. - by morzh - 06-28-2014, 05:59 PM
RE: Philco 45 tone control caps. - by morzh - 06-28-2014, 06:02 PM
RE: Philco 45 tone control caps. - by Arran - 06-28-2014, 10:11 PM
RE: Philco 45 tone control caps. - by morzh - 06-28-2014, 11:02 PM
RE: Philco 45 tone control caps. - by Arran - 06-28-2014, 11:29 PM
RE: Philco 45 tone control caps. - by Ron Ramirez - 06-29-2014, 07:34 AM



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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration