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Pioneer SM-Q300

AM/FM Stereo Receiver

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Pioneer SM-Q300


Tuning range: FM, MW, SW

Power output: 15 watts per channel into 8Ω (stereo)

Speaker load impedance: 4Ω to 16Ω

Valve complement: EL84, 6AN8, 6BE6, 6BA6, ECC83, ECC85,

Year: 1962



re: SM-Q300

I have a smq300 pioneer amp which has a buzz & crackle which comes and goes which is driving me mad. Any information on how to fix this problem would be appreciated. Thank u

re: SM-Q300

I solved the crackling in mine by cleaning the tube sockets of the 2 driver tubes between the power
tubes (6NA8).

re: SM-Q300

It could be a tube or many other things causing it. Have you replaced the electrolytic capacitors yet?

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