Quantizer by Kassutronics.
A faithful recreation of Kassutronics' Quantizer. Functionally identical, with a few small tweaks to the hardware (and a custom FR-4 panel).
In the original design (and in my first PCB) the Gate jacks are directly switched to the power rail. This causes a temporary but direct short between positive supply and ground every time you patch in a cable. I'd highly recommend an additional protection resistor to be kludged in here!