MATRIXSYNTH

MOOG MODULAR synthesizer freq. counter & tone selector

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"Moog modular frequency counter and tone selector module where you can select 12 different tunes (notes) in order to tune very well any synthesizer oscillators. It was mounted on a very big custom Moog modular system in the past. The dimensions are standard like Moog Modular modules. very good to put on a Synthesizers.com or COTK modulars.. It working on 220 / 240 volts with built in power supply."
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SEIKO DS series lot

YouTube via matrixsynth

This video is from the auction with the following note: "apologies for the bad audio quality, due to my bad camera"

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"SEIKO DS additive synthesizer & sequencer collection. Why have musicians like Ruediger Lorenz, Till Kopper, J.M. Jarre and Aphex Twin owned one, then? The answer is that the 310 has an additive synthesis facility that they found sufficiently interesting to ignore the home keyboard elements, also a very nice chorus and many more...

This lot includes:
Keyboard DS-202 with PSU (110 volts)
Digital synthesizer DS-310
Digital sequencer DS-320
Digital memory cassette: DMC2 (new) and DMC1 unspeakable demo ROM cartridge
Midi interface module S1B-1"

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EMS Pitch to Voltage Converter Module

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"The primary function of this device is to convert an audio input into a DC voltage whose value is proportional to the pitch of that input signal. If this voltage is then applied to the control input of an oscillator, the oscillator can be tuned to follow the input in unison or at any other interval desired. In situations where musicians are already using synthesisers to treat the sound of instruments, voice or tape, the addition of the Pitch-to-Voltage Converter introduces a range of possibilities hitherto unexplored, since it enables direct control of the synthesiser's parameters from a live musical input. Others ALL IMPORTANT details on this website"be sure to see the sellers other items.

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EMS Vocoder 2000

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R.A. MOOG modular synthesizer sequencer

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"1x R.A. Moog 960 sequential controller
1x R.A. Moog 962 sequential switch
1x R.A. Moog ULTRA RARE mixer delay interface

...so 3x R.A. Moog rare and original modules in order to expand your Moog system. This modules system is mounted on the big Moog CEMS, unique in the world. I will keep the other 4x sequencers that are amazing together for my techno experimental compositions and ...I don't need of 8x sequencers that the Moog CEMS has in total ;-)

Trade considered only with EMS synthi A, AKS or VCS-3."

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Laser Synthitar Demo

YouTube via datenkrieger75. audio comes in at :39
"DIY Laser Guitar Synth very simple 555-based synthesizer triggered by laserpointers
Ok it sounds ...special and i need some more practice but it actually works"
I almost thought it was this one, but it's clearly not.