The MotherF***** is the DIY delay-reverb box of your nightmares - CDM Create Digital Music
DIY Cassette Tape Guitar Delay | Hackaday
Amazon.com: LANDTONE DIY Delay Analog Pedal and Sky Blue 1590B Case : Musical Instruments
Digital Delay Pedal : 19 Steps (with Pictures) - Instructables
Amazon.com: DIY Delay Guitar Effect Pedal All Kits With1590B And 3PDT 9PIN Switch : Musical Instruments
Digital Delay Pedal : 19 Steps (with Pictures) - Instructables
Landtone Delay kit. No idea where I'm going wrong. It just isn't working. First pedal I've built, so it's probably something stupid. Help!! : r/diypedals
pcb design - Comparator on an op-amp in a PT2399 delay pedal - Electrical Engineering Stack Exchange
Made a delay pedal using the ”PT2399” chip. The delay is pretty simple as of now, but I'm still working on it as well as maybe adding an atmega328(Arduino) to it. :
Delay Guitar Pedal DIY Complete Kit – Guitar Pedal Parts