1978 Guyatone Japan "Rolly Box" Phase Sonix Phaser Pedal
The Guyatone PS-101 Rolly Box (Or Phase Sonix on the earliest models) was a very early Guyatone pedal release. Using IC's that have the labels rubbed off (to hide the schematic) rather than the transistors of the Phase 90 and other simple phasers of the 70's gives the PS-101 a huge range of possibilities. From a throbbing tremolo to a cocked wah mid boost all the way to a reverse phase (by using the "off" setting by turning down the depth knob until an internal switch clicks), the Phase Sonix is truly innovative for it's time.
This is one of the revised models with a 9v power socket, or it also runs on an internal 9v battery.
Good vintage condition as pictured with one damaged knob (still functional).
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