I built the Double Jeopardy and it works great, except there's a faint high-pitched noise when it turns on. The noise gets louder as I raise the gain knob. I have a Onespot CS12 power supply and the DJ has its own output, not daisy chained. The whine is there even if it's just guitar>Double Jeopardy>amp so I think the pedal itself is causing this.
I didn't notice it right away because if I run the boost into a dirt pedal, the high pitched whine goes away. But if I want to boost a clean signal it's obvious.
any idea what might cause this high pitched sound? Is it worth trying different transistors or diodes?
I didn't notice it right away because if I run the boost into a dirt pedal, the high pitched whine goes away. But if I want to boost a clean signal it's obvious.
any idea what might cause this high pitched sound? Is it worth trying different transistors or diodes?