Electro Harmonix Analog Vibrato And Chorus AC31519 but the tremolo effect is

but the tremolo effect is controlled digitally via opto technology

A studio classic and bluegrass favorite

With the amp turned all the way up

This "true pitch" analog vibrato/chorus pedal features an all-analog signal path that can be dialed in to create limitless palette of vibrato and chorus

Strong and Easy-to-Use “Z” knob

Electro Harmonix Analog Vibrato And Chorus AC31519 but the tremolo effect isElectro Harmonix has over 50 years of experience using bucket brigade technology in crafting their excellent effects. The EDDY Analog Chorus Vibrato is no different. For the first time they allow the user to control the rate and depth with an envelope or expression pedal for some wild modulation. The EDDY Analog Vibrato Chorus pedal has unique LFO shape warping features that can transform the modulation shape from a smooth sine to asymmetric waves.