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RE: What the hell could explain this?

do the pencil test with the amp playing. tap the filter caps and see if you can cause the hum to start and stop.

if so you have a bad solder joint. anything intermittent by mechanical means is usually a bad solder joint or wire rap connection. but I would replace those caps anyway.


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  • RE: What the hell could explain this? - airtime 16:02:13 03/14/15 (0)

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