Voodoo Lab’s Tremolo pedal uses the same lamp and photocell circuitry found in many vintage valve amplifiers. But it is much more flexible than the tremolo features on those classic amps. The pedal features a slope control, which offers a range of sounds – from smooth and soothing to a heavy stutter. The pedal is also capable of slow and deep sounds thanks to the speed and intensity controls. The Voodoo Lab Tremolo also gives the user the capability of cutting or boosting the output level with its volume control.