Boss DSD-2 Digital Sampler Delay | GroupDIY Audio Forum
DIY Reverb Pedal Circuit: Spring-Hall Reverb with PT2399 IC – Deeptronic
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. :
Self-made analog delay pedal using BBD (BOSS DM-3 MOD)
ElectroSmash - Time Manipulator: Arduino Delay/Echo/Reverb Guitar Pedal