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Plug a speaker in for a few milliseconds and see if it hums real bad or stays quiet,You might have some power supply problems caused by the failing transistors.What kind of transistors did you use? Newer ones can have increased bandwidth which can sometimes cause hi freq osc.
Plug a speaker in for a few milliseconds and see if it hums real bad or stays quiet,
You might have some power supply problems caused by the failing transistors.
What kind of transistors did you use? Newer ones can have increased bandwidth which can sometimes cause hi freq osc.
