- controls the speed/rate of the LFO wave that controls the effect
an Oberheim brochure
The Oberheim Phasor is a portable electronic music device which creates the popular phase shifter sound. It consists of four phase shift stages and an internal modulation oscillator, the frequency of which is controlled by a pot. A foot switch is provided for switching the phasing effect in or out. The unit can be powered by either an internal 9 volt battery or an AC adapter. Internal voltage regulatoring circuitry allows an increased battery love over competing units. The Phasor's dimensions are: 7" wide, 3" high, 6" deep. It weighs 2 1/2 lbs.