The unit is rather large - about the only bad thing I can say. But it's the only phase shifter I've heard that gives a real psychodelic sweep - unlike a Phase 90 or other phasers.
Model Year: 1972
Where Obtained: some old guy
This is the best phase shifter I've ever heard. 3 switches - Slow - Medium - Fast, control the sweep rate.
If you've heard Rush 2112 on the slow melodic guitar parts - that's it. Alex used this machine on the album.
Does tend to be noisy if the internal pots aren't adjusted correctly. And it is an analog device...
Nice metal case - runs on 120V A/C. Gibson owned Maestro in these days.