Based on the tremolo circuit found in 60s Valco-style amps, the Catalinbread Valcoder Vintage Tremolo offers a unique take on the tremolo pedal with driveability and grit. Typical controls for Speed and Depth control the modulation, while a JFET based input circuit with independent output knob let you add a warm boost up to 10db to your signal. For garage rock, blues and anywhere in between, the Valcoder is a surefire way to add some throwback swagger to your tone.