I built the first Velcro style two transistor fuzz as an experiment, because I was curious to hear what it would sound like. I did not expect it to become my go to fuzz. There are about eight different classic fuzz circuits that share this layout with wildly varying part values from the Shin-Ei to the Orpheum.

I tried all the traditional values and settled on a part set that I thought worked well across a range of different pickup types and musical styles. This is a non gated, dark sounding zippy style fuzz that reacts well to the guitars volume control but never fully cleans up.

The BLEND knob controls the mix of fuzz and “clean” signal. Although clean signal is a bit misleading in this case — it’s more a deep bass-y guitar tone, the usefulness of which does not really become apparent unless your amp is set to mild breakup. In that case you get an interesting mixed fuzz / distortion tone.

Inside there is a pair of metal can BC108 silicon transistors on a custom built PCB, assembled by hand in Renens Switzerland. Perfect for wild psychedelic 60s and 70s rock tones, desert rock, sludge or doom metal. Pretty much any style that requires a massive wall of square waves.