Hello, I have an old ibanez SM-9 "super metal" stomp box. When I use a 9v batt. it gets inteference and recives some AM radio station that is fed through my amp. when I use a wall cord its fine, but its a big hassle with all the extra wire going every where and finding enough outlets. Is there a way to fix this problem or is the batt. circuitry wasted...its a pretty old f/x pedal.
thanks
thanks
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