“Yamaha CS 10 Rare Vintage Analogue Synthesizer With Case – No Reserve.
Wicked monosynth… an upgrade from the CS5 with an extra envelope
Multimode filters external input great punchy sound that sits well in the mix…
I used this one alongside the CS15 (also selling check listings) to add punch and weight
cosmetically in good shape considering its age…
tested the CV and GATE (Hz/v s-trig) ins with arturia beatstep pro and working as expected
as you probably nothing quite sounds like these old beasts…
Ive done limited testing on this and and it all seems to funtion as expected, as a vintage synth
it may have slight crackle when moving pots i havent noticed anything that i would list as concerning…”
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Yamaha CS10
“One key doesn’t work
“The item may have some signs of cosmetic wear, but overall, it is good condition, fully operational and functions as intended.” 
” Classic 70’s mono synth in solid condition with all knobs, switches, jacks and LED’s working as intended.
“This is a great analog single oscillator monophonic synth. It is in used condition. Minor scratches on the hard shell carrying case but the synth functions beautifully (all knobs jacks and keys work). Original power cord still attached.” 
“Yamaha CS-10. Condition is Used.
“This 1979 works and functions perfectly.”
“Up for sale is our Yamaha CS10 vintage monosynth.
“Yamaha CS10 Synthesizer.
“YAMAHA CS10 monophonic synthesizer
“Yamaha CS10 – This synth has a lot of bite to it. Great for synth bass sounds, and house music. Includes original owners manual.” 
“Yamaha CS10 – This synth has a lot of bite to it. Great for synth bass sounds, and house music. Includes original owners manual.” 
“Yamaha CS10 – This synth has a lot of bite to it. Great for synth bass sounds, and house music. Includes original owners manual.” 
“Yamaha CS10 – This synth has a lot of bite to it. Great for synth bass sounds, and house music. Includes original owners manual.” 
“YAMAHA CS-10
“This Yamaha Cs 10 needs maintenance. sold as is.
“Please look carefully the photograph before your buy.
“Overall dullness and rubbing scratches,
“Operates using US voltage — no converter necessary
“I’m the original owner of this CS-10, bought it in Japan in 1981. Still in good condition. Sounds great; rich tones – pure analog. All keys/knobs/sliders solid and working. Besides the organic sounds generated from the keyboard, I plugged my guitar and mic into it for very interesting sounds and ideas. Hate to see it go, but I haven’t used it in many years, and I’m downsizing – everything must go. ”
“This is a great small mono synth imported from Japan in the 1970s. It runs at Japan 100V but works totally fine in the US at 115/120VAC. I do have a step up transformer I will include for an extra $20 if you’d like.
“Old “SnaggleTooth” has had it’s share of memories. Synth is complete, clean and smooth. I ran signal into it and have sequenced sounds out of it, many records have been done on this one. Love it to death, but priorities are different now, so this must go. Kenton Cv to Midi workls as expected, neither has been out side of the studio, so these are extremely clean.”