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Help! 60 Hz hum from Bass control

3/5/2000 3:26 AM
Ron
Help! 60 Hz hum from Bass control
I need help with my amp. When I turn the bass control up past 3 I get a 60 Hz hum out of the amp.  
Tone controls are standard Marshall type, .02uf and 1 meg pot for bass. I have not had time to scope the B+ yet, but the hum only comes when the bass control is turn up. Is this a problem with my wiring layout?  
Any help would be most welcome. Thanks.

 
Replies:
Keith Ron, I ran into the same exact thin... -- 3/6/2000 4:51 PM