I have an old Crumar Perofrmer Synth from the '70's- I did a little research and this was the kind used in Duran Duran music-It works but some of the plastic knobs on the sliders are missing-I'll get a pic up for you to see what it looks like if anyone is interestd (my camera is broken so I have to borrow someones)
Anyway-let me know if your interested

As Neil says: Keep On Rockin' in the Free World!