DE-buffering Classic Fuzz Circuits For Consistent Response

[lovekraft0]

As much time and effort as is spent on Fuzz Face variants and similar circuits around here, and knowing that input impedance strongly affects the sound quality of them, it occurred to me that finding the optimum input loading and designing a impedance converter (a de-buffer, so to speak) that would supply that input impedance would allow the design of a fuzzbox that performed consistently, regardless of whether you play a cheap 60s import single-coil or an EMG-powered superstr@t. Just a fleeting thought - anybody think it's worth pursuing?

[B Tremblay]

http://www.muzique.com/lab/pickups.htm

[lovekraft0]

So, a buffer (to eliminate any pickup interaction), followed by Jack's LRC pickup simulator circuit, tweaked to the "correct" response curve - a simple, elegant solution! That's a great starting point, thanks!

[Gus]

You might be understanding the FF wrong it is not input z it is more an imperfect summing node.  Look up an inverting opamp circuit design

The three tran has a crude sim the 10K between the buffer and fuzz section

Even the better sim of Jack's does not model the mess inside the guitar that goes to the summing node of a FF.  the mess changes with vol setting and tone setting and different pickups switched in or out.

[Satch12879]

I've heard that Steen Skrydstrup has supposedly solved this problem...