How to Significantly Improve a Simple PT2399 Delay Circuit | Circuit Salad
DLY-1 Lofi-Delay – Skull & Circuits
DIY 4 Second Digital Delay – Electric Druid
Two StompLFO projects: Mod Delay – Electric Druid
Pedal effect circuit design: getting started - EDN
This Is The Delay Pedal You Can Build Yourself | Hackaday
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. :
LEAP#339
Eurorack delay into delay pedal. Circuit mod? - MOD WIGGLER
Boy in Well
Boss DM-2 Delay Guitar Pedal Schematic Diagram
Self-made analog delay pedal using BBD (BOSS DM-3 MOD)
La Révolution Deux: Mad Professor - Deep Blue Delay
The Valve Wizard
Boss DD-2 Digital Delay Guitar Pedal Schematic Diagram | Guitar pedals, Diy guitar pedal, Guitar
DOD - 680 Analog Delay - freestompboxes.org
DIY Reverb Pedal Circuit: Spring-Hall Reverb with PT2399 IC – Deeptronic