Reverb pedal

The way to create the "Reverb" effect can be divided into two types: mechanical and electronic, depending on the operation principle. The first and at the same

Reverb Effects Pedal with 3 TonePrint Slots and Expression-capable Footswitch

The Tremulus Lune was designed by Dan Green from Commonsound and is a fantastic sounding optical tremolo. It's a very versatile trem, and has a very adjustable LFO section. The audio path goes through the TL072, and the LFO is created with the 4558. A VTL5C2 can be used, or you can make your own photocupler with an LED (3mm red) and LDR (5k/500k). The LED pads on the right side of the board is for an LFO speed indicator. This LED could easily be used as on/off indication as well. Wire the…

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Here's a cool PT2399-based circuit designed by David Edgar (DIYSB member Earthscum). He describes it as, "kind of like playing in a sewer tunnel..." Here's a link to the original schematic and discussion over on DIYSB. I noticed the schematic image in the DIYSB thread is now broken, so I've drawn up a new one for reference here.

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Tube Reverb & Tremolo Add-On Circuits

StompBoXed - The Guitar Pedal Builders Repository: Center Stage Spring Reverb Unit

A simple delay with both subtle reverb tones as well as oscillation reverb.... Schematic HERE