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Philco 71 E IF adjustment instability
sandbar40
Junior Member
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Posts: 10
Threads: 4
Joined: Jul 2012
City: New Zealand
#1

07-27-2012, 06:41 PM
Have just joined altho' been restoring radios inside and out for many years.
current project, 71 e chassis C 34468.
Completed circuit restoration including restuffing bakelite cap. cases with 630 v axials, electro cans with 10 uf 450v, and replacing any resistors too far out of tolerance.
Coils all checked ok and set worked across bc band.
Started to align by peaking if's to 260 khz and all went well until the last trimmer, no 4 lh side back - 1st if primary - whitch caused set to oscillate noisily before a peak was reached.
Backing off this trimmer resulted in the set operating ok, but i wonder if this is normal behaviour, any suggestions very welcome.
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Philco 71 E IF adjustment instability - by sandbar40 - 07-27-2012, 06:41 PM



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