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37-116 (122) - Audio Interstage Transformer - Modification
spfradios2
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Posts: 11
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Joined: May 2010
#1

05-26-2010, 02:06 PM
I'm new here, and not an electrical engineer. I've been to the Antique Radio Forum regarding my issues, and they sent me here. This is my second Philco (normally I'm a Zenith guy... sorry).

The primary is dead on my audio interstage transformer (part 109 - 32-7057). It uses a 6F6 to drive two 6B4's. I was lucky enough to find a good one at Play things of the Past.

Questions:
1) Should I take the time to protect the primary winding of my new transformer from the 6F6 plate per the Modification A idea on Philco Radio.com?
2) If that is a "yes", I need advice on the size of the plate resistor? By what principle do you size it? I can learn something here!

As my restoration proceeds, I'm sure I'll be back with more questions. But one issue at a time for now.

Thanks in advance
John Shaffer
Honor, MI

PS. I like your Philco sites, and the Schwark schematic stuff.
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37-116 (122) - Audio Interstage Transformer - Modification - by spfradios2 - 05-26-2010, 02:06 PM



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  1. The PHILCO Phorum
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