Vibe Pedals
A vibe pedal, (known as a uni-vibe or vibrato pedal, is a modulation effect that can produce sounds similar to a chorus pedal or phaser pedal.
It originally was created to try to emulate the sound of a Leslie speaker.
Although it did not accurately reproduce the sound, the vibe effect it created has stuck around.
Macdaddy Music sells a variety of vibe pedals from brands such as Dunlop, Keeley, Electro-Harmonix, Red Witch, and Wampler.