Dec 022016

The Supro Tremolo pedal has preamp and power amp sections with an actual output transformer that helps it re-create the saturation and coloration of vacuum-tube-based effects from the ’60s. With an analog circuit design by Thomas Elliott, it emulates a Class-A tube circuits using switchable Amplitude or Harmonic modes and controls for Gain, Speed, and
Supro Offers Tremolo Pedal
Source: Vintage Guitar – Magazine