Musitronics | Mu-Tron Bi-Phase

Phaser effects were common in the 1970’s, but the Mu-tron Bi-Phase combined two phase shifting circuits and in its time was the preferred “the phaser-lover’s ‘phasor'”. It used technology from the old Uni-Vibe, with lamps and photo cells, and featuring two independent sweep generators which could be coupled, each with individual rate controls and the option to choose square or sine waves. The unit could be connected to an optional rocking foot pedal so that the effect could be operated in the manner of a wah-wah pedal. It was used by The Smashing Pumpkins as an integral part in achieving the “pumpkins sound” for the 1993 album Siamese Dream: “This is one of the secrets to our secret sound. This is the Mu-tron Bi-phase. We run everything through it – everything. It’s fabulous”, said producer Butch Vig in the video documentary Vieuphoria.