[TenTec] Older Argosy 525 - internal noise floor?

[Dr. Gerald N. Johnson, P.E.]

Sounds to like a symptom of a leaking coupling capacitor or a noisy
transistor. Cleary before the audio gain control. Resistors occasionally
fail in a noise producing mode. Time for some signal tracing with
sensitive scope or the old fashioned signal tracer (diode detector and
lots of audio gain).

73, Jerry, K0CQ

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