1978 Yamaha SK30

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"vintage Yamaha SK 30 analog poly synthesizer, strings , organ as well as a mono synth in very good shape."

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Vintage Yamaha CS-30 Keyboard Synthesizer w/Hard Case SN 1511

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Roland SH-101 with Extras

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"Comes with power cord, vintage soft case, grip, and strap. Works perfectly and has no major cosmetic damage that I can see. The strap has some stains on it. Will also throw in a Monster Cable..."

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BLUE ROLAND SH-101 SN 310213

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See the seller's other items for more.

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Oberheim OB-12 Keyboard Synthesizer

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"Mint....Still has the protective film on the screen. Comes with power cord and original manual."

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AKAI EWI3000m Analog Synthesizer Sound Module

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Surprisingly, these do not come up often. They are meant to be played with the Akai EWI - saxaphone like wind instrument. See this post for the full system and a video.

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Korg PolySix Analog Synthesizer with KiwiSix Upgrade & Oak Case SN 382297

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"Not sure you can get a better PolySix than this.

KiwiTechnics 'KiwiSix' CPU Upgrade
KiwiTechnics brand new PSU
Custom power socket and midi connection panel.
Custom handcrafted solid oak case

The solid oak case is brand new, as is the cpu and psu upgrade. Aside from carrying out the upgrades I have fully serviced and calibrated the beast and she is ready to rock.

The KiwiSix CPU mod takes this synth into another dimension, it adds many, many new functions but most importantly gives the PolySix MIDI, and full MIDI CC implementation for complete external control, 4096 steps to each control also.."

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Roland TB-303 Vintage Analog Bass Synth

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Roland RS-505 Paraphonic String Synthesiser w/ Original Box

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Roland System 100

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"included components are 101/102/103/104

also comes with original brace to attach 101 and 102 together,

physical condition of 101/102/104 is incredible
103 mixer has some pitting and spots of rust."