ElectroSmash - Time Manipulator: Arduino Delay/Echo/Reverb Guitar Pedal
Using the Hot Springs Reverb - PAiA - DIY Music & Sound Electronics Kits - Synthesizer, Theremin, Studio
DIY Reverb - Cigar Box Nation
T60 Reverberator | Home
How to build your own spring reverb unit | Guitar.com | All Things Guitar
Tombola's DIY spring reverb driver circuit - ua726
Build Your Own Spring Reverb | Tape Op Magazine | Longform candid interviews with music producers and audio engineers covering mixing, mastering, recording and music production.
Analog Spring Reverb : How it works | Anasounds
DIY Reverb Pedal Circuit: Spring-Hall Reverb with PT2399 IC – Deeptronic
DIY Reverb Pedal Circuit: Spring-Hall Reverb with PT2399 IC – Deeptronic