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philco 90 -just restored but system hums
morzh
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#5

05-30-2014, 09:15 PM
If you are sure it is not from speaker, then most probably it is the power transformer buzzing. My 70 also has this problem that becomes more pronounced with higher AC voltage. Not sure what could be done, short of tightening the transformer (did not help me) or...don't know.
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RE: philco 90 -just restored but system hums - by morzh - 05-30-2014, 09:15 PM



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