ilovefuzz.com

Hey, so I have a Prescription Electronics Experience old perf board pedal. When I engage the "fuzz" effect it works fine, but when I try to add the octave or swell feature I get a severe volume drop. What could cause this?

schematic please

for those too lazy...

I should also note that this is inside my guitar and is being powered through a TRS cable into a pedal powered by my CIOKS powersupply, I don' think this is the problem because my other fuzz works fine.

when octave and swell are both engaged and swell knob is fully ccw you have a 470R shunt on the tip of your output jack. that explains it. the circuit is just made that way. be careful how you have the swell knob set. you could use a dual 100k pot for swell with the other element wired as a volume control that gets louder at ccw. the problem is that you are just attenuating everything if you do that. the makeup gain needed on the output might create more noise than is acceptable.