I guess this is where it all started – The Glenn Snoddy Fuzz-Tone. I modified an existing MKI layout on the larger vintage size vero for this, sized to fit in a wedge enclosure. Initially, I was going to do the original layout used, but it was a bit of a mess – as was the practice back in the day.
Don’t forget that the FZ-1 runs off 2 x AA batteries (3v). There are some schematics out there missing the 470k resistor – these are considered to be wrong, as a 470k resistor is clearly visible in photos of the original units. The FZ-1A is basically the same, with some minor tweaks, running at 1.5v.
RCA 2N270 transistors are pretty hard to come by; just use anything you might find in a MKI, as they are of course very closely related.
FZ-1 FUZZ-TONE – 0.15″ VERO LAYOUT
The effect was so revolutionary at the time that they needed to publish a guide, which came in the form of a record.