This FX unit is modeled after the Foxx Tone Machine™ fuzz pedal, available from 1965-1975. Known for its long sustain.

SUSTAIN

This knob controls the distortion and the famous sustain level.

MELLO-BRITE

This knob controls the tone and ranges from (you guessed it!) mellow to bright!

VOLUME

Adjusts the overall output volume.

OCTAVE

This switch acts like an octaver – adding harmonic distortion an octave above.