” For parts or repair the high keys are not functioning other than 3 keys. a little more than half the keys do work. the contacts have been cleaned my best guess is it has worn out carbon contacts. i do not have the time to repair or diagnose the issue so am selling for parts or repair. the keyboard does turn on and boot and produces great sound with they keys that are functioning. ” Click here to search for synths on eBay
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“Desktop version of Korg’s famous Poly 800.
“For sale a beautiful Korg M500 micro-preset. This unit was in a box for almost 40 yrs. everything works as it should and in good shape. The badge is somehow different from others .. the “micro-preset” badge was lost or it never been there don´tt know exactly why but I presume this is one of the first units mounted.” 
“Korg Poly-800 poly800 Analog Synthesizer
“Keyboard owned since early nineties. The unit has always functioned well. It has hardly been used since then, as I never learned to play, even after buying the included manual. It also comes with a foot switch to change programs, AC adapter, new batteries for program back-up (never used) and midi cable.” 
“Cosmetically it is not so pristine. It is structurally sound, but you can see in the pictures that there are chips in the wood, the panel is scratched, and there is a plastic button missing, which I am sure you can source, and the underlying switch works.
“KORG MS2000R in pretty good shape. There are some scratches etc on front panel as seen in the photos. Synth works great!
” This expander is in very good condition(battery compartment real clean) have on hand 4 / 64 patch banks for various Korg synthesizers. I will pack well w/ free shipping ! continental 48 only please. does not include power supply, does not include loaded patches. Thank you for looking !” 
“headphone jack used for test. sounds good. all voices sound. filter and resonance respond great. organ tones respond. all other functions untested. chip to one key. fully playable. sold as is. 4/5 cosmetic. ” 
“Comes with power supply, midi cable, output connector. Used very little. Satisfaction guaranteed” 
“There are fine scratches, but overall it is in very good condition.” 
“Includes a box of floppies with sounds, songs, etc. (in case you want to get the floppy drive fixed… there are cheap solutions on eBay) and the original manuals.” 
“You are bidding on a great YAMAHA DX7 II-FD DIGITAL PROGRAMMABLE ALGORITHM SYNTHESIZER. Powers up and seem to be working. All keys are present and all in great condition and none are stick. All buttons are present and all working. All connections are original and all working. Screen in good condition and works great. Comes with power cable only. Comes with case and case is not original. Missing a box, stand and manual. Please look at the pictures before bidding, you will get what you see in the pictures. ” 
“YAMAHA CS-01 MONOPHONIC ANALOG MINI-SYNTHESIZER (IT HAS YAMAHA CS-80 SOUNDS) IT HAS BATTERY POWER AND AC….UNIT FUNCTIONS EXCELLENT (ALL CONTROLS WORK GREAT) EXCEPT THE FIRST 6 WHITE KEYS AND THE FIRST 4 BLACK KEYS DO NOT PRODUCE SOUND…I AM PRETTY SURE IT JUST NEEDS THE CONTACTS CLEANED…THE ONLY PHYSICAL DEFECT IS 1 WHITE KEY HAS SMALL CRACK (KEY IS SOLID THOUGH SEE PICTURE) AND IT IS MISSING THE BATTERY DOOR…WILL BE DOUBLE BUBBLE WRAPPED AND IN CARDBOARD BOX FOR SHIPPING” 
“This SY35 is in perfect working condition and in Very Good condition.
“This one is in good condition and appears to be functioning just as it should. It has a brand new backlight and some of the electrolytic caps have been replaced. I cleaned the unit up as best I could – there are some scratches throughout – please see photos.”
“Yamaha synthesizer midi enabled, Very good condition” 
“THIS ITEM SHIPS ONLY WITHIN THE CONTINENTAL USA, NO EXCEPTIONS … Yamaha TX816 in excellent condition with all original factory manuals and performance guides … All the module batteries are in working order and the unit retains the Yamaha factory patches … I hesitate to sell but I’m moving to software synths these days” 
“Yamaha DX21 Digital Programmable Algorithm Synthesizer Keyboard Instrument
“Sequential Circuits Prophet 600.
“This is a 1983 Sequential Circuits Six-Track six voice analogue synthesizer. It is one of the first analogue synths to include MIDI in and out and has 64 preset sounds. It has six voices that can be stacked individually as well as plays with six-voice polyphony. I am including the original manual. Because of it’s vintage nature it is being sold as is. Everything is tested and working.”
“This one is in really nice shape and is in great working condition. As you can see in the photos, this Vintage analog synth has been well looked after and has the regular wear and tear for a vintage synth of this age and pedigree.The unit has been fully tested, cleaned regularly and maintained well.All the keys, sliders, knobs, and switches are original and working as they should be.The front panel is clean with the usual marks & blemishes for a vintage synth of this age. Front panal has a very unnoticeable scratch (shown in photo)Back of unit has usual tour wear and tear as expected.The synth has been kept and stored in a climate controlled recording studio.Both beautiful side panels are brand new and without a blemish. (the originals are also included)This Prophet 600 is good looking and solid” 
“This keyboard is in great condition especially cosmetically, it almost looks new. All sounds and functions work on it including the “touch sensor effects” however the keys and the sliders are very stiff and one slider is missing a cap. The stiffness is bad enough that it will need to be addressed so the price reflects this. Also when adjusting the volume sometimes the sound will go out but will come back once the slider is adjusted to the “right” spots. I had posted this earlier stating that it didn’t work in other ways but it turns out it works great I just had my headphones plugged into the wrong output. (Different outputs than I am used to, this thing is old school!)” 
“Erthenvar Patch Chord V3 Plus Pulp Logic Chords Modular Synths Working Properly” 
“Complete Frac-Rack Modular System in Excellent Condition! Buyer pays shipping and insurance. Please wait until you receive invoice before sending payment.
“For Parts. Lots of scratches, stains, marks, damage, missing parts, etc. There was mice poop found within some of the units and at least on of the units had a remark stating NOT WORKING due to mice urine damage or something….. I am not sure if it was these items or not, but there is some mice poop that I shook out of them. These items will arrive in the condition stated, with some mice poop. THESE ARE NON WORKING ITEMS.
“Excellent working condition Elektron Monomachine SFX-60! See pictures for cosmetic details. Includes power supply. 6 track multiple synthesis Sequencer. Classic vintage gun metal look ?” 
“This is an Akai AX-60 analog VCO based 6 voice synthesizer!! It is in excellent condition and sounds fantastic! It has a huge bass-end without any editing!
“Very Good” 
“This is an early model Oberheim OB-8 analog synthesizer and does not have factory MIDI. The unit is in excellent functional shape. It has a small dent in the rear of the unit shown in the photos. I’ve never had any issues with the presence of this dent. I purchased the unit with this issue and the previous seller did not have issues either. I have replaced the entire keybed with new contacts and thoroughly cleaned the unit. The volume knob sometimes has a slightly scratchiness only while turning when not in use for a while which is normal for its age. All buttons and knobs work as far as I can tell. It has all the original patches as far as I know. There is nothing like the sound of an OB-8! I have purchased many newer analog synthesizers and just don’t have room for this monster. It has a lovely warm 80’s sound! I “Do Not Ship Internationally” and only ship to the lower 48 states, Please No Inquiries. The unit is being shipped “As Is” because of its age. The unit has many internal boards that have not been removed so it should be fine to ship.” 
“Tracking down vintage gear? I’ve had this in my closet boxed and now putting it on eBay. The “Strummer” listens to chords played on your MIDI keyboard and plays them back to your MIDI sound source (Synthesizer or Sampler) just as they would be played from a guitar. Not only will the chord voicings be correct, but the chords can actually be “Strummed!” With the “Strummer,” you can even change the speed and direction of your “Strums” just by changing the way you play your MIDI keyboard. Also, “Strummer” has the ability to distinguish the difference between chords and single notes, allowing you to send chords out on one MIDI channel (Distorted Guitar Sound for example) while your single notes are sent out on a different channel (i.e. Solo Sound). Your keyboard may have a great guitar sound, but can you play a great guitar part? Yes. The Oberheim Strummer will transform your keyboard playing into a stunning and convincing performance featuring realistic guitar articulation. It comes in the original Oberheim box with manual and ac adaptor.” 
“Unit is in mint condition. Seldom used. Never gigged. Smoke free studio. Everything works” 
“Overall in nice condition. Sounds great and all the keys and sounds work as they should.
“Vintage Casio CZ-1 Digital Synthesizer. All buttons, slider, display, audio out, modulation and pitch bend wheel are working. No defect whatsoever. The only issue is a missing slider cap of the stereo chorus. The unit is in pristine condition as well. there are minor scratches on the keybed. This is rated 110V.” 
“Perfect condition with no rack rash or scratches on front panel. Less than 40 hours of use. Great sounding filter.”