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.

Tuesday, December 30, 2025

EHX/JHS Big Muff 2

Happy Holidays, everyone. This one seemed like it needed laying out before the year came to a close, so here's the new EXH/JHS colab, the Big Muff 2. It's an op amp based Big Muff that's not like the typical ICBM, but uses 2, 4558s in 3 soft clipping configurations into a BMP tone stack. Schematic on FSB, should fit in a 1590B. Happy New Year!