” KORG MS-20 Vintage Analog Semi-Modular Synthesizer – 1978 near mint. Condition is Used but look at the condition of this baby. Never gigged, only used for a few times in a studio. This one has the original and rare filter (the screw on the VCA stage holds the daughter board). It has never been opened or messed with – it’s 100% original. Also comes with manual and some patch cables.” Click here to search for synths on eBay
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“Excellent Condition Korg Mono/Poly from the early 80’s. 100% checked out and everything is working as it should. I hate to use the term “mint”, but this is as close as you can get. No wear at all. No wear on keys. No wear on front panel. Just beautiful! Sounds amazing This is Korg’s finest analog. FAT, FAT, FAT! Tunes perfectly. No mods. 100% original except for the bottom and the sides. Pro built cabinet. Walnut on sides and under keys. Bottom is birch plywood. Very nicely taken to the next level. Looks fantastic. The original had contact paper on sides, and particle board for the bottom.” 
“This Korg EX-800 Synth Module is in VERY USED condition with dents and scratches all over. It had some hard use back in the 80s – I know because I used the heck out of it! The internal battery is good and the patches are all there – some may be custom/altered from the original factory patches but I think what is in there is better anyway. I have fully tested the unit and it works fine – sounds just like it should – I forgot how awesome these old modules sound! Anyway, here it is – A Generic Power Adapter is included!
“Korg PolySix has been tested at shop in digbeth Birmingham advised in need of attention,retuning & contact board replacing,middle keys all work fine.
“This listing is for a KORG MS2000R.
“YAMAHA FM Sound Generator FB-01 with owner’s manual in used condition. Unit powers up and all push button functions are working. ” 
“Yamaha CS-10. Condition is Used.
“This is a hard to find Yamaha DX5 synthesizer. This one is in excellent condition, it’s been fully tested and everything works flawlessly. Has a new internal battery installed and I’ve loaded all the original factory sounds back into it. Only flaw is there’s an area on the left side of the front panel that is slightly blotchy in color (see pic #2). Local pickup only.” 
“Yamaha FB-01 FM Sound Generator. Condition is Used. ” 
“For the old school Synth heads here’s Yamaha dx7 keyboard. All key and functions work as they should. Item will be shipped securely.” 
“I’m selling Yamaha CS70M vintage analog synth truly analog beast, next step down from famous CS80. item came from PRO music studio, everything original, nothing missing, nothing broken, no any rust or dust inside, I tested the synth to my best and I don’t see any issues, seems everything works, voices are stables no drift, no overheating issue(common for CS80, 70, 60),some calibration probably would be good for so old machine, unit is very big and heavy enough,” 
“Vintage Yamaha CS-15 have owned for years
” original prophet 600. fantastic condition, a few small cosmetic scratches”
“I bought this damaged synth a while ago in this condition, but I’m unlikely to get around to fixing it up any time soon so selling it on as I need the space. It does not have a power supply and was sold to me as faulty so that is the condition you are buying it in (it requires a 15v AC power supply). There is water damage to the top panel with signs of rust and even some holes, mainly on the left and right edges. I’ve opened it up and the internal parts are pretty clean and tidy though, no sign of water damage there.” 
“Very good condition and comes with Turbo CPU/MIDI, plus a top of the line Fatar keybed installed. this work costed around £450 just for the parts and so the synth is priced higher than the usual selling price to account for these highly functional upgrades.
“Bought in 1980 with all the good intentions to pick up my keyboards sessions from my youth. Played a few times for fun then put into storage in 1985 in original box where it has been ever since. Extremely lightly used.” 
“Arp Avatar Vintage Synthesizer Original
“In good physical condition.
“Here is an ORIGINAL ARP Odyssey. I have had this for years and used only a couple times.
“Rare, vintage, great sounding synth drum. Works well for its age and condition. Please check photos for a good amount of wear and tear. Case missing 1 screw.” 
“Oberheim Matrix 1000 analog synthesizer. Very good, clean condition. New 2032 battery installed with clip, so future battery replacement is simple. All six voices are now functioning properly. Two of the CEM 3396 voice chips were not functioning properly and have been replaced. Voices tuned and calibrated/see pics. 7 new stainless case screws and complete main board screws. V1.13.” 
“2019 Haken Continuum Fingerboard – Perfect Condition, Barely Used.
“Teenage Engineering OP-1 Keyboard Synthesizer. Comes with antenna for radio sampling, crank kit and Unit Portables soft carrying case.” 
“It’s only plays with headphones that I plugged in it-I guess maybe the speakers are blown. Therefore I am selling this for parts or repair. It does not work like it should. I found a power supply from a different Casio that works. That’s the one that comes with it .I can hear a couple small things tinging around when I shake it. It has a lot of scratches on the back but in front only has some wearing on the keys. a lot of the Dust will probably wipe off but I didn’t bother to. This electronic is for parts or repair it does not work!”
“Less that 950 of these were made, and even less exist today!
“This is an excellent vintage keyboard/sampler. Word on the street is that Kanye used one of these to work on his first records. Comes with 7 loaded disks (2 start up disks – the blue ones) and an empty disk (for sampling/creating your own sounds) . Has everything from awesome synth sounds to drum samples. ” 
“I acquired this synth many years ago and it has served me well in my studio.
“Cwejman DMF-2 Two Modes Dual Filter. Condition is technically used, it has a normal amount of rack rash for the early Cwejman panels and comes with the original power cable.
“The CAT synthesizer by Octave is in excellent condition, everything is working. One owner, purchased new in 1978. Original instruction manual is included. One of the silver colored disks is missing on one knob. The small square in the VCF section is a piece of mirror from a disco ball ? I will let the buyer decide if that should come off or not. Buyer to pay shipping with insurance. No returns.” 
“I’ve had this synth module for around 10 years. It has a wide pallet of sounds, from lush synth pads (add some chorus), biting chord stabs (great for electronic dub) in poly mode, to thick lead sounds in unison mode, to weird stuff pushing the filter resonance and adding some ring mod. I will miss this synth; selling to fund other studio upgrades. ”
“Emu SP1200 Drum sampler Machine SP-1200 Black reissue e mu vintage /7030. Condition is Used.
” MOOG 1125 SAMPLE- HOLD. Condition is Used.Works great” 
“Was going to donate it to my son’s school, but they can’t use it. Just want it to go to a good home. I don’t need to sell it, have owned it since 1983, still works but it’s been sitting in my garage for 20 years and it deserves to be used. Comes with case, but the foam is COMPLETELY shot and will need to be replaced. One key is popped up (no idea how since it was just sitting in the case), one switch is broken. Still seem to work fine. Plugged it in, and played it and is sounds fine.” 
” Roland JD800 in excellent condition. The keybed has been restored/cleaned to remove all traces of “red glue” and the weights re-attached (quite a job!). The visual condition is excellent 9/10 I would say and couple of small marks. All working as it should all bar the aftertouch (which has never really worked on any JD800 I have owned!).”
“This monophonic synthesizer was purchased in the 80s to use on stage. However, due to unexpected circumstances (band breaking up) it was only used a couple of times on stage. Since then it has been safely stored in a hard carrying case.