via this auction
EVERYTHING SYNTH
"For your consideration is this vintage 1980s Sequential Circuits Prophet 5 "Rev 3" analog synthesizer. This particular MIDI example, serial number 1989, is in very excellent all original condition and includes; the original owner's operation manual, the original sustain pedal, the original rescue cassette tape with factory presets, as well as, the original Anvil ATA flight case. This is a particularly excellent original and intact specimen with all of the original accessories. It is a one owner instrument in excellent shape that was actually used in both the film and soundtrack for Fast Times at Ridgemont High. so take advantage of this opportunity to get a particularly fine example.