MATRIXSYNTH

Vintage Godwin SC249 String Concert Synth & Flight Case

via this auction

Not the best pics, but you don't see these often.

Arp Odyssey Mark II model 2813 analog synthesizer

Note: links to listings are affiliate links for which the site may be compensated.

via this auction

"Dated between 1975-1978
Made in the USA
serial number 2813 1653
Model has the CV & Gate ins and outs"

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Novation X-Station 25 Synthesizer

via this auction

"Novation X-station 25: 25-key Virtual Analog Synth and USB MIDI Keyboard Controller with Mic Preamps and Effects Processors"

Remember to send your auctions in. They will either go up here or on MATRIXSYNTH-B

FUTURE RETRO 777 SYNTHESIZER SEQUENCER

via this auction

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Buchla 261e Dual Oscillator

This one is listed on Marktplaats.nl

Click the image for the full size shot.

In via an anonymous reader.

Roland DC-30 Analog Chorus/Echo - Vintage BBD

via this auction
Googlish description:
"Roland / Boss is known for great chorus effects and the chorus mode of the DC-30 is no exception.

Another special feature is the "Repeat Rate Control Jack," about the delay time can be controlled by external control voltage. Method is to use either a foot pedal or CV output of a synthesizer or MIDI → CV converter. The amount of shares of the delay signal can also have an analog lowpass filter (tone) to adjust.

Although the unit is operating in mono, there are two separately controlled inputs and outputs for separate original signal and processed signal - this can be distributed so the panorama.

The heart of the DC-30 form two Panasonic MN3005 BBD chip with 4096 stages, which for example in the early versions of the Electro Harmonix Memory Man were used. In favorable BBD delays usually get 512 or 1024 Stage chips are used - the difference you can hear!

Controls: 2x Input Volume, Chorus / Off / Echo Selector, Echo Repeat Rate, Intensity echo, echo, volume, tone

Audio inputs: 1x Mic Input, 1x Mic / Instrument input (switchable between -50, -35 and -20 dB)
Audio outputs: 1x Direct Output, 1x Effect Output (switchable from -20 to -35 dB)
Control inputs: Repeat Rate Control, Foot Switch (effect on / off)
Dimensions: 386 (W) x123 (H) x206 (D)
Power supply: 220V AC
Weight: 3.7 kg
Serial number: 974 846"

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E-MU SYSTEMS Emulator Ⅱ Desktop Version?

Listed on Yahoo auctions Japan.

Emulator II minus keys.

This one in via pokmijn

"E-MU SYSTEMS EmulatorⅡ KEYCUT??"

☢

YouTube Uploaded by SunamachiSoundSystem on Apr 3, 2011

Basic Assembly Audio Sequencer for SEGA Master System

YouTube Uploaded by littlescale on Apr 3, 2011

"A brief demo of an audio sequencer I've been working on for SEGA Master System. To be clear - you right the audio sequence in assembly code (see start of video) which is then compiled, and then the ROM file actually plays back the sequence. Just some fun for a Sunday evening :) http://little-scale.blogspot.com"

Basic Audio Loop Playback On SEGA Master System

Uploaded by littlescale on Apr 3, 2011

"Basic Audio Loop Playback On SEGA Master System

Simple stuff - just a ~30KB audio sample, played back on repeat.

http://little-scale.blogspot.com"