Ebay: Korg PS3200 Synthesizer
Here is a rare Korg PS3200 synthesizer on ebay. The seller says: "It is one of only a few hundred that Korg made in the mid 1970's, and this one is 100% functional. It has just been serviced and calibrated by a tech who really knows vintage gear at an authorized Korg repair center. So unlike many vintage synths you come across that are expensive restoration projects, this one needs no work- it's ready to play."