A classic sounding LM308N distortion, with a little extra dirt and crunch, and a 3-way clipping switch (Silicon, LED or no clipping). Ruetz mod included with on-board trimmer.
Clipping (Silicon / None / LED)
Limit 3 per customer, for non-commercial use.
B-stock meaning these had a mis-measurement, so you'll have to free-wire the diode toggle, or just hardwire it to silicon or LED full time. That's why they're only $4.
You will need to source out your own parts. This is just the PC board and documentation alone.
Build at your own risk - no direct support provided.