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"Up for sale is Very Rare ACE TONE PS-1000 vintage analog monophonic synthesizer.
Ace Tone / Ace Electronics Industries was the predecessor to Roland, and it is said that PS-1000 monosynth was designed by the founder of Roland almost simultaneously to when Roland released the popular SH-3A.
The unit appears to be working fine, there are four damaged keys as pictured, but they are responding fine when you push the remaining part. Also the reset button on VCA-HOLD appears to be missing the top part of it, but the function itself is fine. Otherwise, everything else appears to be working well to the best of my knowledge, all the functions working fine as being tested.
Aside from the physical damages mentioned above the unit is in nice cosmetic condition, there are some wear and marks here and there but nothing too major. I'm including plenty of pictures so you can see exactly how it looks.
Comes in original Hard Case as shown.
Power cable included."
"SYNTHESIZER ATARI 2600 VIDEO COMPUTER SYSTEM.
"Up for sale is Very Rare ACE TONE PS-1000 vintage analog monophonic synthesizer. 
"Circa 1979-82 Roland MRS-2 Promars Compuphonic Analog Synthesizer. Very nice gently used condition see accurate photos. Works very well had recent service and new internal memory battery done at Raymond Brothers Organ & Electronic Equipment Service DeLand, FL. One knob and 2 slider knobs replaced. You can buy complete orig. sets on ebay I see listed at $18..."
"Exceedingly rare Sequential Circuits Model 800 - Excellent used condition, one owner, only light use. All switches, LED's, display, and knobs work as they should, fully tested. All switches and jacks cleaned. All memory banks tested through all 16 steps with no record or playback issues. Switch works perfectly, with no issues. An amazing piece of equipment for CV/gate controlled synths. A great collector's example of the evolution of synthesizers!"
"THE DRUMTRAKS WAS COMPLETELY SERVICED BY MARC MARC AMSTERDAM AND IS IN EXCELLENT ELECTRONIC CONDITION.
