Here's a simple clean boost circuit built by JHS. It's really just the Tim Escobedo Duente JFET boost with a fixed r… | Guitar pedals, Diy guitar pedal, Boost pedal
Build Your Own: Clean Boost Guitar Pedal - Jacob N Calvert
DIY Strat (and other guitar & audio projects): Building a quick Brian-May-style treble booster on Veroboard
DIY Guitar Boost Pedals | Build Your Own Guitar Booster | DIY Effects Pedals
RangeMaster Treble Booster Based DIY Guitar Pedal Effect PCB