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PT-93
exray
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Posts: 893
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Joined: Mar 2008
City: Vieques, PR USA State, Province, Country: PR
#2

05-03-2008, 05:58 AM
That gizmo was to provide a low impedance ground connection at the IF frequency since it was found that the original paper caps had some undesirable self-resonant properties.

Modern caps don't have that same concern so you can use them without the extra coil. Do try to use the same grounding point if at all possible.

GL,
Bill
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PT-93 - by Guest - 05-02-2008, 09:37 PM
[No subject] - by exray - 05-03-2008, 05:58 AM
[No subject] - by Ron Ramirez - 05-04-2008, 11:41 AM
PT-93 - by Guest - 05-04-2008, 01:18 PM



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