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Philco 511 Restoration and Questions
Radioroslyn
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Posts: 7,294
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Joined: Dec 2009
City: Roslyn Pa
#24

10-08-2015, 10:11 PM
Two ways to go. One the replace the transformer AES a has a suitable unit 1:3 ratio.  Or  connect .01 cap from pin 2 of the 27 to pin 3 of the 26 and a 250k to ground. Connect a 100k resistor from pin 2 of the 27 to B+
The transformer is a bit better way as it adds volt gain between the detector stage and 1st audio.

Terry
(This post was last modified: 10-08-2015, 10:26 PM by Radioroslyn.)
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RE: Philco 511 Restoration and Questions - by Radioroslyn - 10-08-2015, 10:11 PM
RE: Philco 511 Restoration and Questions - by Jimmy Radionut - 07-14-2017, 12:46 PM



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