Mid 60's Valco-style dirty garage tremolo The Valcoder was designed to recreate the tube tremolo as well as the amplifier breakup of these vintage amplifiers Separate input and output controls allow you to get anything from a clean tremolo sound all the way up to a gritty tube like breakup driving the tremolo circuit. The Valcoder features an all discrete analog LFO circuit inspired by 60's Valco tube tremolo The Valcoder has a dynamic and responsive audio path (JFET based) that adds a bit of vintage tube amp style grit and slight compression to your sound.