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Philco 84B
cadradio
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#1

04-21-2011, 11:44 PM
I just purchased a Philco 84B. It plays and tunes well. After 10 minutes, it will not tune and makes a high pitch squeal as the tuner is adjusted. Is this a part overheatingand what part might it be?

Thanks for any assistance.
Radioroslyn
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Posts: 7,288
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City: Roslyn Pa
#2

04-22-2011, 07:12 AM
Hard to say which part is at fault. I would poke around the detector circuit. Have any of the caps or resistors been replaced? Have a look at the 1 meg screen resistor and it's bypass cap. Also switch the 77 tubes.
Terry
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

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