Modified Moog Prodigy on Ebay

"The added mods are:

knob for DRONE level, so the VCA will stay on. This makes filtering sounds much better. It can also distort in a very good way if it is turned all the way up when the keyboard is played.
knob for AUDIO INPUT level
jack for AUDIO IN (audio signal to the filter via the mixer)
jack for VCF IN (this is a CV INPUT for the filter)
jack for VCA IN (this is a CV INPUT for the amplifier)
jack for OSC IN (this is a CV INPUT for the oscillators)
jack for KEYBOARD IN/OUT (this can be a CV in or CV OUT)
jack for S-TRIGGER IN/OUT
jack for GATE IN
jack for LOW LEVEL AUDIO OUT"

Info at the listing...