via this auction

This MG-1 model is basically a Moog Rogue, without the Pitch and Mod wheels.
Unlike the Rouge, it has two additional "voices" in the mixer section, "Bell Tone"(a ring mod type sound based off Oscillators 1 and 2), and "Poly-Phony"(separate tone source with its own tuning, allowing chords to be achieved).
This specimen is in excellent physical condition. All slider caps and knobs intact. All switches and keys work, it sounds sweet.
There is slight cracking in the stick on panel graphic, which is purely cosmetic, see the last two photos. Doesn't affect playability or functionality.
Aprox. 7.5ft long 3 prong power cord.
Great source for cheap, dirty, and warm analog Moog bass. This was my backup, never gigged with it.
Unmodified. 2 RCA outs in back, 1/4" headphone stereo out in front.
This is a perfect candidate to modify and add 1/4" output jack, and/or a midi retrofit kit."