Maestro RM-1B Ring Modulator with Control Pedal Wonderful and Weird There is also some light

There is also some light oxidation towards the front and back of the face

You can also use the Grand Orbiter as a true pitch vibrato with the “Phase/Vibrato” switch

which has been refinished and now presents very well

but switches the wet signal to the opposite channel

Maestro RM-1B Ring Modulator with Control Pedal Wonderful and Weird There is also some lightSuper rare early 70s effect unit. For sale serviced, calibrated and sounding wild. Comes with the Pitch Modulation control pedal and print out of the tuning instructions should you need to adjust the internal trimmers. Note you will need two balanced (stereo) 1 4" jack cables (included, only one shown in photos) to connect the pedal to the unit (but you can use the unit without the pedal and slide the controls by hand). Condition is clean with some