The Mu-Tron Bi-Phase features two independent 6-stage phaser circuits, two sweep generators (oscillators), and various unique controls for maximum flexibility in creating a wide range of phasing effects. It includes several practical features such as LED indicators for each phaser, a microphone stand socket for elevated mounting, and AC cord storage on the back panel. The unit comes with a dual footswitch, an optical photoelectric foot pedal, and a synthesizer interface for external sweep control. Like all Mu-Tron products, the Bi-Phase is built for durability, designed to handle the demands of professional use. – From the original Musitronics Bi-Phase ad, circa 1970s. Includes original 2 button footswitch. Converted to 240v with AUS plug. Video: https://youtu.be/f-b8ozyXVKA?t=73Product Specs Item Number: 34623 Make: Musitronics Model: Mu-Tron Bi-Phase Condition: Very Good Finish: Brushed Aluminium Categories: effects-and-pedals ⇒ phase-shifters ⇒ pedal Year: 1972 Made In: United States MPN: 34623