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Positive ground fx power supply buzzing?

Arty

Member
Messages
16
Hi dudes, sorry if this has been covered before...

Could anyone tell me... When you have your amp switched on, and you have a positive ground pedal powered up to a mains/9v power supply, with a guitar plugged into the amp, but with NOTHING plugged into the pedal... when you touch that pedal do you get a loud buzzing noise through the amp? ...and if so, why/how does this happen if its ONLY connected to the power supply and nothing else?!

Thanks :)
 
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