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Radio buzzes
45philcodon
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Posts: 95
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City: Fountain Hills, Arizona
#1

10-26-2019, 05:41 PM
I've just finished re-capping and replacing out-of-spec resistors on an Airline Model 62-425 (Montgomery-Ward). I also replaced the Metal clad resistor (R9,10 and 11) with non-metal resistors.
The radio has good sensitivity and plays just fine above 1000KHz. Below 1000KHz there is a persistent buzz that gets louder the lower the tuned frequency. Stations can be heard in this range but with the buzz.
I've tuned the IF and oscillator circuits and I tried moving wires around looking for anything that affects the buzz to no avail.

I welcome any suggestions on how to proceed.

Thank you

Don
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Messages In This Thread
Radio buzzes - by 45philcodon - 10-26-2019, 05:41 PM
RE: Radio buzzes - by morzh - 10-26-2019, 05:54 PM
RE: Radio buzzes - by 45philcodon - 10-26-2019, 06:57 PM
RE: Radio buzzes - by Chas - 10-26-2019, 11:39 PM
RE: Radio buzzes - by 45philcodon - 10-27-2019, 04:36 PM



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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)