This is a vintage 1986 ProCo “The Rat” electric guitar effects pedal. This particular “White Face” example, serial number RT-033454, is in very goodt all original condition and includes the original box and instruction manual. This pre-LED version features the desirable LM308N chip, with all potentiometers indicating an early ’86 production.
While this pedal certainly displays evidence of typical wear and tear, it remains in good all original condition. It sounds absolutely incredible and is comparable in many ways to an earlier large box variety.