Schaller Tremolo

A clone of the Schaller Tremolo built using BC109 and 2N3904 silicon transistors with Panasonic caps and electros. There is also an additional boost section which enables the output to get way past unity gain. The toggle switch disengages the modulation so the pedal can also just be used as a booster. The knobs control Volume, Speed and Depth and the second footswitch acts as a rate doubler, going between two speed ranges. There is a dual-colour LED that indicates which speed range is selected and the bypass LED also acts as a tempo indicator.




