Based on the "triangle-knob" circa 1971 4-transistor fuzz, but I've changed the input capacitor to a more saturated-sounding type like the circa 1973 'rams head' version fuzz. From there, I've tightened up the bass and smoothed out the highs and eliminated the mid scoop. So instead of a raging wall of fuzz, you get a more focused and amp-like tone, without having to stack with eq's and/or other overdrive pedals to smooth things out or bring up the midrange.
Demo by sukuta takafumi (JA)
Demo by Vintage Stompboxes (EN)