RYO Optodist Kit
A compact, easy to use, easy to build and great sounding distortion module which will also work as a VCA if desired.
The Optodist is based on two Silonex optocouplers that gives its characterful overdriven sound and plucky dynamic response to CV, it is equally at home adding a bit of extra crisp to highs and mids or warming up your lows as it is turning a resonant filter into a howling beast or your drums into crushing carnage. We offer two choices of optocouplers, SR2 and SR3, the latter giving a tighter, snappier CV response and slightly less bleed. Please note that due to the nature of the vactrol-style optocouplers, response behaviour may vary between different factory batches.
Also on board is an LED based limiter circuit which limits the signal thru a set of 4 LEDs which can be seen on the panel, for adding a different flavour to your distortion, the choice of LEDs is up to you, experimenting with different types will affect the sound. Two colours of LEDs are available from us, green being standard and also a limited run of yellow that has a subtly brighter tone and is much brighter visually as well.
The Optodist is a novice-friendly project, it is a low part count, single-PCB build that only requires the most basic experience in PCB soldering and module assembly. Kits comes supplied with PCB, front panel (PCB material), component kit, knobs, power cable and mounting screws. Solder and tools are not supplied.
Depth with power cable attached: 31mm
Power: min ca +/- 13mA max ca +/- 16mA