GitHub - Niyousha-Gh/Guitar-Distortion-Pedal: This is a clone of the guvnor distortion pedal for electric guitar of Marshall company. It's been designed by Altium Designer.
Hybrid+ Altium 15
GitHub - effectspcbs/altium-projects: Altium PCBs for guitar effects pedals
Audio Electronics
Design printed circuit board pcbs for guitar pedal effects by Pcbdesign_engr | Fiverr
Where can I download 3D models? : r/Altium
Hybrid Altium 12 Powered 12" Loudspeaker w/ DSP & Bluetooth
PCB Layout Basics for Pedals - YouTube
9-V Rechargeable Storage System for Electric Guitars - EEWeb
Guitar Effects Development Board - Share Project - PCBWay
Found on the circuit board of a guitar pedal : r/pics
How To Design a Guitar Pedal - Part 4: PCB Layout - YouTube