Yamaha CS80 SN 1675

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Yamaha CS80
1979 / 80
Eight Voice Polyphony
Two Analog Oscillators Per Voice
Internally / Externally
Fully Checked / Serviced
Cosmetic Condition 8/10 ( Some Usual Tolex Wear To Outer Casing )

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Sequential Pro 3 SE

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Dave Smith Instruments Poly Evolver Keyboard

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via this auction "Has upgraded pots/controllers"

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Waldorf Microwave I REV 2.0 RACK SYNTH SN 9413129

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Note this is the original Microwave with analog filters and not the Microwave II with digital filters. The OS is REV2.

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Roland V-Synth GT 2.0

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Roland ROM / RAM CARD Set

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Voice Crystal X - 64 Voice RAM
Roland PN-D50-00 Memory Card
Roland PN-D50-01 Memory Card
Roland PN-D50-02 Memory Card
Roland PN-D50-04 Memory Card
Roland TN-SCI-03 70's and 80's
Roland TN-SCI-06 Piano Bar
Roland TN-SC1-10 Easy Eight
Valhala D50/D550 Studio Series New Age
Bo Tomlyn's PRO-I ROM

E.M.I Ritm-2, analog soviet pizzazz

video by Valmont

"Facts I translated from an obscure russian forum:
- Development started in 1983
- Were made by hand from 1985 to 1992 in the Soviet Union
- 6767 units were built, estimated about 200 to 500 still working tho.
- The factory employed 15 workers: not enough people for a quality build. PCBs were cut and drilled by piles together by hand, the keyboard in an unspeakable handiwork thing...
- SN number starts at 2248 and ends at 9015, so mine is number 91!
- Black models are from the 80's, yellow/white plate ones are usually from the 90s
- Moog-type Ladder Filter (Micromoog or Prodigy?), Moog-inspired envelopes as well

Was just serviced"

RH-1 Synth build and description

video by RH Electronics

"Build montage and description of the RH-1 Synthesizer PCB.
Synthesizer all on one PCB"

The World's Most Beautiful Synthesizer According to ANDREW HUANG

video by ANDREW HUANG

Magic wand for analog synthesizer

video by Paul Dabs

"Demo of the magic wand used to send CV control on analog synthesizer.
Basically 3 LEDs flashing a LDR, and a circuit converting the resistance change to 0-10V CV."