Compressor Guitar Pedal DIY Complete Kit – Guitar Pedal Parts
Guitar FX Layouts: Mad Professor Deep Blue Delay
Deep Blue Delay Kit - StompBoxParts
Time Manipulator Is an Arduino-Based DIY Time Delay Guitar Pedal - Hackster.io
Binson Echorec style delay (Hydra Delay) is so good. Can't believe this PCB exists in the diy world, we're truly living in the best era for DIY pedals. : r/diypedals
EPK - Echo Delay PCB diy pedal | Reverb España
Digital Delay Pedal : 19 Steps (with Pictures) - Instructables