Future Retro FR-777 RARE Early Purple Edition (#10 of 30) w/ VCA Sustain Mod

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via this auction

"This analog beast is so much fun to play with! It is way more than a TB-303 clone, with 10 times more knobs to trick out the sound into mind-bending regions far beyond the original. I'm sad to let it go but I just haven't been making music for a few years and want to find a good home for my gear. The sequencer is like the FR Mobius, with on-the-fly editing while playing.
There is minor paint wear on the face plate, especially around the filter cutoff knob, to be expected with all the knob tweaking this thing inspires :)

RARE early purple edition (#10 of 30), w/ VCA sustain mod (switch on rear).
The additional switch changes between normal gate decay and no decay (infinite sustain)
'As in the original 303, if a long sustain is written for a note’s duration the VCA’s gate signal will eventually decay until no sound is heard. You can change this so that the gate signal never decays, and infinite gate times are possible.'"