Analog Man SunBender MK1.5 and Marshall Supa Fuzz. Played with an old Telecaster into a Fender amp. Supa Fuzz has three germanium transistors, MK1.5 only has two so it's not quite a fair comparison. Setting the BIAS knob (in the center of the Sun Bender) higher gets it close to the bright, buzzy Supa Fuzz tone.