Got a request for this one. It's a nice boost with a 3-band EQ. Pots are board mounted and it will fit in a 159… | Diy guitar pedal, Guitar pedals, Distortion pedal
New Diy Booster Stompbox Guitar Pedal Kit Pre-drilled True Bypass With 1590b Free Shipping - Guitar Parts & Accessories - AliExpress
Diy Mod Music Man Bass Pedal Advance Eq Electric Guitar Stomp Box Effect Amplifier Amp Acoustic Accessorie Effectors - Integrated Circuits - AliExpress
3 Band Audio Equalizer Circuit
Perf and PCB Effects Layouts: HomeBrew Electronics Detox EQ
Equalizers – DIY – TH custom effects
How to use bass EQ pedals to take full control of your low-end | Guitar World
Simple, Easy Parametric and Graphic EQ's, Plus Peaks and Notches