The Fuzztone is an early design of Dan Coggins before Lovetone or Dinosaural appeared.
The first publication in ETI (Electronics Today International magazine) actually had an error on the schematic – it wasn’t critical, as it just changed the frequency response a little, and it lost some level along the way in the filter section. Remember that ETI supplied a PCB for the project, so it would have sounded right.
You can find the corrected schematic and a few words from Dan here.
ETI, DAN COGGINS THE FUZZTONE – VERO LAYOUT
FUZZTONE ON LTSPICE
I’ve not built this yet, but it looks like a distortion/overdrive with a mid-hump and not much top-end on LTspice.
This is sweeping both the sustain and filter pots from 0 to 50% to 100%
