Guitar Reverb Pedal
This is the second generation of a circuit for a guitar spring reverb pedal, it has dry, wet, and drive controls for a wide variety of sounds. With a decent reverb spring (tank) in overdrive, this circuit will produce an incredibly thick and grungy sound, build one and be the envy of all of your guitar playing friends. This thing is fun to play through. This circuit is here for historical purposes, it is recommended that you use the much improved
Source:http://www.solorb.com