Here another classic fuzz, the Mosrite Fuzzrite. This is the silicon version. The original transistors were marked "TZ82" so be sure to use sockets and try a few different ones out. The original pots were 350k and 33k, which are going to be difficult values to track down. You can either use 500k and 50k, or use 500k and 50k and add fixed resistors in parallel (between lugs 1 and 3) to try and recreate the original values.
This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.