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Old 4th December 2017, 04:31 PM
Richard Richard is offline
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Join Date: Dec 2005
Location: Notts
Posts: 4,500
Default Re: Kit 34 tubes change bias

Hi Aro, yes as Bob says the input selector switch is the rotary one on the right;

Turn the amp on,

turn the volume up quite loud but with no music playing on any input,

then wobble the input switch around to see if it is making a noisy connection.

Change inputs and try them all.

What kind of noise is it; hum, crackle or rustling, whine, etc?
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