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.

Friday, November 29, 2019


Happy Black Fuzz Friday, everyone! Be sure to check out the store for a bunch of new boards and a 15% off Black Friday sale. Use coupon code "blackfuzzfriday" at checkout.

Here's a cool silicon Buzzaround variant I found browsing DIYSB. Any low hFE transistors should work ok. 2N2222A, 2N2369, MPSA42, etc. Should fit nicely in a 1590B.


  1. Verified. The gain and volume are not very high, but the sound is a Buzzaround. I made two assemblies, one using mpsa42 and the other using 2N2222A. I thought the mpsa42 assembly sounded a little better.