“Partially working with faults!
Instrument side:
Elec Bass LED always on (doesn’t Cancel) No sound either from this preset.
Tuba never switches on, so no response from this one either.
the other 4 work as intended, including trim pots.
Synthe side:
LEDs will light & cancel, but none are sounding.
I have a feeling this will centre around the filter chip rather than the buttons. Similar to the common fault in the Korg Delta. The parts are still available.
The left hand side of the panel is fully working, input, portamento/ interval/ tune/ octave all 100% on the 4 working voices. Still great fun to be had with this alone! Glitchy, Prog-type fun & Octave effects a-plenty!
Synthe filter knob not working, again pretty sure this is related to the synthe side. Possibly these tones go through the filter chip & the instrument side is filtered by resistors etc, as you have no control over those.”
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” This keyboard is in very good condition. Its been tested. Everything works. The battery was changed out about 4 years ago.” 
“This is a used item. Not sure if it works or not” 
“In tested working condition. However, the joystick is loose and needs fixing. It can only trigger the oscillator function. It can also probably use a proper cleaning. Original adapter included.” 
“This item is for parts! No returns!
“Remotely control everything with a large, bright LED display with this rare beauty!
“For auction is a storage sale find of a KORG POLY-61M Synthesizer. Item powered up fine and I was able to get sound from all keys. I was also able to make various cool sounds at different settings. That’s pretty much all I can say as I’m no expert in synthesizers, much less a musician. Please take the time to review all the pics and watch the video so you can get a better feel as to what’s being offered here.”
“230V, no MIDI. Some dents on the wooden sides, minor scratches on the front panel. I tried to spot all of them. They’re not very visible. It looks very nice, works flawlessly and sounds beautiful. Overhauled last year, no battery issue, no scratchy pots, no sticky keys. I kept it in a soft case which I’ll give away with it.” 
“Spectacularly preserved Korg Poly 800 analog synth with hard case, original manual, original factory preset cassette tape and original power source. We recently purchased it from Switched-On in Austin TX and it has been fully serviced. It can be battery operated and has pegs so that it can be strapped on and played as a keytar (awesome). ” 
“Includes manual and power cord. Has spent many years sitting around and did not work when I tried to turn it on – but might be fixable as was working previously. At very least good for spare parts. “
“Zum Herumstehen einfach zu schade. Yamaha TG77 Soundexpander/Racksynthesizer incl JSPA Soundcard wegen Hobbyaufgabe zu verkaufen. Normale Gebrauchsspuren vorhanden, technisch einwandfrei.
” Zum Herumstehen einfach zu schade. Yamaha Synthesizer DX7. Wegen Hobbyaufgabe zu verkaufen
“I am selling my vintage Yamaha DX27.
“very good condition. works very well.” 
“Up for sale is a Yamaha fm tone generator.
“Up for bid is a Yamaha DX7. Unit dies not function, sold AS IS, for repair or parts.” 
“This Yamaha Dx7 II is in great, working condition! Just don’t need it anymore, comes with Ram 4 card and bag!” 
“Rack version of DX7.
“Previously owned NOT WORKING PROPERLY Vintage Yamaha DX9 Synthesizer
“Used Yamaha TG55 Midi Rack Digital Synthesizer. Device is in good condition. Missing the knobs for volume and data entry (as seen in pictures).
“Classic Yamaha FM synthesis right here in a box.
“In good functional condition. Has woodgrain end cheeks instead of the black painted ones. Volume pots are a little scratchy but all functional. There were note stickers on the keys that were removed. Some keys have minor damage, but nothing to hinder performance. Sounds amazing, but I have too many polysynths at the moment.” 
“Good condition . Everything works as should .. Sounds great .” 
“I am reluctantly selling my Pro One. Between a friend and I we have had this classic for over 30 years.
“In good working order. A few scratches here and there due to age. Easy and intuitive to programme – fun to play.” 
“RAREST of the RARE: ARP Odyssey Mk I (Late Model 2800-1974-5). This is a two-oscillator analog synthesizer, and one of the first with duophonic capabilities (the ability to play two notes at the same time). This allows you to get that wonderful “guitar-like” distortion when used with Distortion/Flange effects.that bands like Ultravox used to good measure as a lead synth.
“Original legendary duophonic ARP Odyssey MKIII in great working condition. The last of the original series including the four pole resonant 24dB lowpass “moog” filter!” 
“Up for sale is this ARP Axxe.
“I have Owned this for 15 years.. its loveley condition 
” hi, the unit is working 100% fine. I recorded many songs with it’s help, the sounds are amazing, see youtube videos with demos. It has some lofi and oldschool sounds similar to Boards of Canada or other left field bands. You will have fun with it : ) happy bidding!”
“Used, just serviced & fully functional Oberheim Matrix 1000 6 voice analog synth. Unit does have rack rash and some marks on top/bottom. 
“Emu SP12 Turbo 2.6, Brought back to like new condition by Bruce Forat in LA in January 2016, used sparingly in my smoke free home studio triggered by another machine. 8 new audio outputs added, sample pot replaced and pcb traces repaired, all new numeric pad buttons replaced, pads replaced/reconditioned as needed, new battery, Noritake fluorescent display added, vinyl repro faceplate with small printing error (no start lettering under start button). 
“Limited testing was conducted on this item. Appears to be functional. All keys played. The keyboard exterior has some wear, and scratches.” 
“This OP-1 is in excellent condition, and in the original box with all accessories.