Holdsworth Designed TONE CONTROL

THIS IS NOT A SOUND DEMO WITH A GUITAR AND AMPLIFIER. It is an analysis of Allan Holdsworth's tone control using an oscilloscope and a pair of function generators used in the audio range where we can hear it thru an LM386 based mini-amplifier. Also there's a brief bit about my LTSpice analysis of the circuit.

I wanted to know more about this tone control that Allan Holdsworth designed for his custom Harness units, so I built it and tested just that part of the circuit. I think it has potential to be used in a few different ways, in a simple tube amp or in a DIY guitar pedal. In my use of it so far it has never been harsh or "muddy" sounding!