MXR M68 Uni-Vibe Vintage Rotary Pedal
The Uni-Vibe is an effect usually assocciated with Hendrix, Trower, and a few other classic guitarists but it is a wonderful, swirling, unique effect that is a different take on "chorus" type effects.
This MXR Uni-Vibe is the same electronics as their wildly popular but limited edition 70th Anniversary Hendrix Uni-Vibe. With its simple three-knob interface, you can dial up the iconic effect to your taste in short order.
First, use the VIBE switch to select either Chorus Mode—dry signal mixed with pitch-shifted signal—or Vibrato Mode—only pitch-shifted signal. Then, use the LEVEL control to set the effect volume, the SPEED control to set the sweep rate, and the DEPTH control to set overall intensity.