Hello,
I found guitarpcb.com thanks to Musikding.de (european distributor for guitarpcb),
from which I built my first and only ( so far) DIY pedal: a Treble Booster, see here under


I built it because I am a true fan of Rory Gallagher ( RIP 1995) who only used a treble booster to feed his Vox AC30 and to deliver that raw sound of blues rock we love so much ( Irish Tour 74, Live in Europe 72)