Mystery: I built three copies of the same circuit (fOXX Tone Machine) from the same stripboard layout; one works, the others do not. I measured the transistors and all the collector voltages
Foxx Tone Machine build on breadboard. Something popped, but what?
fOXX Tone Machine Octave-Fuzz - ranked #364 in Fuzz Pedals | Equipboard
Other/unknown Foxx Tone Machine - Pedal on ModularGrid
Foxx Tone Machine Reissue Octave Fuzz | Reverb
Warm Audio Foxy Tone Box Fuzz | Delicious Audio
The fOXX Tone Machine is back! | guitar moderne
I built a Piercing Moose / Foxx Tone Machine : r/diypedals
FOXX Tone Machine – DIRTBOX LAYOUTS
foxx tone machine : r/diypedals
Tone Machine - Foxx Tone Machine - Audiofanzine
Tone Machine (Reissue) w/Yellow Flocking - Effects Freak