Sequential circuits samplers

My wife and I were at a local music store the other day when they were
having a "tent sale". There was this keyboard leaning up against a
table, so I asked the guy how much he wanted for it. He said $10, so I
got it. It's a Prophet 2000, and it appears to work, except that the
preset switch bounces. I haven't tried the disk drive yet. I have been
learning what I could about it off the internet, and opened it up to
find that it has the optional memory card (for 512k) in it. I may have
some questions in the future, but for now I'm having a good time
playing with it. $10 for a sampling synth ain't bad!
-- Pat