MATRIXSYNTH

Korg MS-50 expander module

via this auction

"Monophonic
1 VCO + pink and white noise
1 LFO
2 VCFs (highpass/lowpass)
2 ADSR envelope gens
CV/Gate"

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Yamaha TX-802 Digital FM Rackmount Synthesizer SN 0101046

via this auction

SN OI01046

"You can download the pdf user manual here. It has Midi In, Out & Thru. It has 8 digital tone generators, and can play 16 notes at a time. Each tone generator has 6 operators. These FM operators can be arranged in one of 32 different ways. (Called FM algorithms.) Each operator gets its own ADSR Envelope. To make programming easier, a computer software graphical editor can be used. The TX-802 works fine with a free java application called JsynthLib, even on 64 bit Windows7. You can download it here: http://www.jsynthlib.org/"

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Korg Polysix Vintage Analog Synthesizer w/ Case, Manual & Tape

via this auction

Access Virus B digital synthesizer

via this auction

"It has Midi In, Out & Thru. It has 2 main oscillators, and can play 24 notes at a time.(24 note polyphony) Each oscillator has 64 waveforms... There is a 32 band vocoder that can process an external audio signal. Every parameter is controllable via midi. The Software version is 3.0 , and the Latest Operating System software can be downloaded at: [link]. The instructions for installing the new OS into the synth are in the user manual. The synth is digital, but is set up like an analog synth: 2 VCO's, 2VCF's, 1VCA. There is a seperate ENV for the VCF and the VCA. There are 2 LFO's."

SN E10001592

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ether^ra SERGE/BUCHLA IMPROV

YouTube Uploaded by potterpaint2000 on Nov 11, 2011

"a Serge Creature/Seq A w/Buchla 200eimprov w/ voice sample. http://etherra.blogspot.com/"

EHX Small Stone - US vs. Sovtec

YouTube Uploaded by retrosound72 on Nov 11, 2011

"vintage gear demo by RetroSound

Electro-Harmonix Small Stone phase shifter
comparison: USA version 2 vs. russian Sovtec version 3

US version 2 (1978-1980)
Sovtec version 3 and the last

demo stringmachine: Logan String Melody 2"

AngryOctopus WebotronFM - Online Java Based Monotron

via AngryOctopus
"I love the new Monotrons from Korg, I was considering attempting digital versions but thought it would be much more fun to come up with my own design. I decided to go for something that would make more sense digitally and so FM seemed the logical choice. I went for buttons rather than the usual ribbon controller which would probably make a physical version too expensive but is much easier to play."

Give it a try via the link above.

Vintage Korg 770 with Original KORG Dust Cover

via this auction

"It is kind of the big brother to the Korg MS-20. It features several unusual features, including: scale noise, external audio processing, traveler control of filters (HP/LP w/ res), and much more. It also includes the beige vinyl cover for it (which it must have sat under, protected, for some time). This piece looks like it came straight out of a time capsule!"