Product Overview
Excellent condition. Pedal only. Tested as working to spec.
The Boss PH-1 was the original phase shifter made in Japan by Boss, with a simple two-knob control. Produced between 1977 and 1981, it was succeeded by the PH-1R with added resonance control.
OP-AMP: Motorola MC3403P x 2
#vintageandused
