So... Just for something to do while lying in bed all day yesterday, I decided to create an updated version of my favourite guitar pedal, which I built for myself around 2008.
That pedal was a #dod250 overdrive with a switch to remove the clipping diodes, effectively turning it into a "clean" boost. This cascades into a slightly modified Rat, which can also have it's clipping diodes switched between 1N914 and red LEDs (this is the only distinction between a Rat and a TurboRat).
All this inside a #1590BB enclosure, with two stomp switches for true bypass signal switching, two toggle switches for OD/CB and Rat/Turbo, and 5 pots for parameters.
The NEW version has entirely digital control via an #attiny #microcontroller, 5 digital potentiometers, and IC analog switches to switch the features on and off. The MAJOR new addition is a switch to reverse the insertion order of the FX, so you can have 250 -> Rat OR Rat -> 250! A single encoder w/ OLED screen replaces the 5 pots and 2 toggle switches. Stomp switches are still true bypass. I'm aiming to fit this into a #1590B box
I'm putting the entire project under an MIT license, and will release all the relevant source code, drawing files (schematic, board layouts, etc) once complete. This is very much a #WIP.