Low part count two knob Fuzz

[knutolai]

I'm doing workshops for local teenagers where we build fuzz pedals and learn very very basic stuff about sound. To keep things as easy as possible given the participants varying soldering-skills I've tried to find the simplest possible two knob fuzz circuit (a volume pot in front of the circuit is cheating  ).

Im pretty happy with the below circuit. At one extreme of the fuzz pot its basically a Bazz Fuss with a 1M feedback-resistor. This gives it a less harsh more mellow character and more dynamic note sustain (no gating). At the other extreme it sounds like some dirty overdrive. Note that increasing the fuzz-amount reduces the volume.

[tca]

That's a very good idea for a workshop!

Looks simple enough. This simple circuit works with low voltages, even with a 1.5V battery. Keeping the 9V battery you could add another pot and a capacitor to vary the supply voltage.

Cheers.

[ghostsauce]

Awesome endeavour and circuit!  I'd love to hear it.

Also with the ps requirements so low, it's a great candidate for onboard guitar fx.