A modified and improved version of the oldest fuzz circuit I know of
The Skreddy Pedalså» Bloody Knuckle is an ALL GERMANIUM 3-transistor fuzz.
The original Maestroå» Fuzz Tone was made famous with the Rolling Stones' hit "Satisfaction." Then the first version of the Tone Bender was made by Gary Hurst, basically a direct copy, only using different transistors and a few different resistor values, ostensibly to give it more sustain. (also a bit less of an angry bees in a jar thing)
What I've done is...
...Take that same old design and improve the "Attack" control such that it has a gradual sweep and is very useful all the way from top to bottom
...Fix the bias, BUT JUST BARELY, so it has plenty of sustain and does not have a gated (on or off) effect. Instead what it does is it breathes and sags, kind of like a weak tube rectifier in an old amp. You can defeat the sag effect by simply turning down the Attack control a bit or by adding some neck pickup. It sags the most with the bridge pickup when droning some low E and playing power riffs on the A string--you can make it almost choke out using this technique. Fun stuff!
...Use AC127 transistors, the same germanium devices used in my Screw Driver and Hybrid Fuzz Driver. This is an NPN transistor, meaning it uses a standard negative-ground power supply.
...Improve the sound quality. The Maestro Fuzz Tone utilized a 100k resistor at the input of the effect, resulting in a weak, low-fi signal. On the other hand the Tone Bender Mk1 used a 2 megaohm resistor at its output to pad the volume down, again resulting in a low-fi signal. I am using 100 ohms in series at input (just enough to soften the attack a tiny bit and warm it up) and zero ohms in series with the output (other than the volume pot). I am instead padding the output signal with a voltage divider, the same way the Fuzz Face design does, giving a clear, well-defined sound.
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