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, October 5, 2021

Stompbox Converter

 Had a couple questions about stompbox use with line level, so I drew up this. This allows you to drop the line level signal down to instrument level, send it out to whichever stompboxes you want to use, then back and amplified back up to line level. Schematic and discussion here. Made two versions, one that could be run off typical +9v pedal power, and another for bi-polar 12v supply used in Eurorack synths, so you can build it either in pedal form or Eurorack module form.







Tuesday, August 31, 2021

Greer Amps Southland

 Turns out the Southland is pretty much the same circuit as the Lightspeed, but with some hard clipping diodes thrown in the middle (and a couple value tweaks). Figured I'd make a new layout with space for the diodes. This layout uses the same drill template as the Lightspeed.





I ended up building a 2-in-1 with this and a Lightspeed and highly recommend it. If you'd rather a fabricated board, check out the LightLand on the store.





Friday, August 20, 2021

Grind Customs FX Ultra '78

 Happy Fuzz Friday, everyone! Here's a cool take on the IC Big Muff by JuanSolo and Grind Customs. It's essentially the '78 IC Big Muff with the tone bypass switch with the tone stack from the Ultrastoner. Should be able to squeeze it into a 1590B. 



Tuesday, June 8, 2021

Lounsberry Nigel

Here's a transistor based overdrive I came across on FSB. Demos sound interesting, so give it ago. Easy fit in a 1590B.





Tuesday, May 25, 2021

Greer Amps Tomahawk

 Here's a popular drive box from Greer Amps. It's essentially a Distortion +/DOD 250 but with a modified gain control, LED clipping and a treble cut pot. Should be an easy fit in a 1590B.







Tuesday, May 11, 2021

Hudson Electronics Sidecar

 Here's a really great sounding overdrive from Hudson Electronics. The Sidecar is loosely based on the Tube Screamer with a 2-band Baxendall EQ and some interesting soft clipping. It uses a PNP germanium as a diode along side an LED and a 1N4148 in an asymmetrical configuration. I've got a fabricated version available in the store as well if you prefer and the schematic is over there in the build doc. 







Friday, March 19, 2021

Catalinbread Karma Suture

 Happy Fuzz Friday everyone! This one recently got traced on the Aion blog (so go check out the full write up over there for more info and schematics). The Karma Suture is based on the Harmonic Percolator and has come in both germanium and silicon versions. The difference between the two are just a couple value changes, so you can build either version on the same board. Value differences are outlined below.