ilovefuzz.com

Got one off Ebay for pretty cheap. It was listed as fully working but it aint. At first it was dead but I started to get some effected signal when I moved the attack pot about. At some positions it's silent, others a decent fuzz tone, and others a super saturated fuzz with horrible high pitched screechy oscillating squealing. I'll replace the pot and cross my fingers but while I'm waiting for it to arrive I wondered if you guys had any ideas about what else might be up. I've dealt with scratchy pots before but never encountered one cause problems like this.

It's either the pot or possibly the electro going in to Q2s base being bad, you should probably replace them all anyway.