MATRIXSYNTH

ALTAIR-231 3-VCO 3-OSC RAREST ANALOG SOVIET USSR SYNTHESIZER SN 3849

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"If you are familiar with Soviet synths you might know that ESTRADIN-230 has absolutely identical schematics (all 6 PCBs) with ALTAIR-231.

ALTAIR-231 is powerful monophonic 3-OSC synthesizer produced by Elektroizmeritel, millitary radio plant in Zhitomir, USSR, 1986. Synth has 4-octave keyboard (F-C) with velocity (sensitivity assign to vibrato effect). For live performance there is a wheel which provides pitch shift. ALTAIR-231 is based on 3-VCO (OSC-3 can work as the modulator), 1 VCF (lowpass 24dB/oct) with ADSR, 1 VCA, 3 LFO, noise generator (white/pink), glide, memory. It has an EXTERNAL INPUT allowing to use FILTER and GENERATORS with OTHER INSTRUMENTS such as guitars, synths, etc! ALTAIR-231 consists of 5 main sections - OSC, MIXER, MODULATION, FILTER and AMP."

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John Bowen Solaris Synth. Brand New. Black

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"1 month old. Plastic Film still on each screen.
Not a scratch. Sounds huge and amazing.
Was gonna use it for a project that didn't pan out.

It just blows out of the water anything else really.

Wait 6 months or more, and pay 4200 plus $150 of shipping. Or get this one! :)"

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EDP Wasp Deluxe - Rare Vintage British Analogue Synthesiser with Flight Case

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"A good rare collectors British working synthesiser. The Wasp Delux was released in 1979 with all the features of the origional plus a standard 3 octave keyboard, oscillator mixer, external audio input, built in speaker and battery operation. Around 80 deluxes were made before the demise of EDP."

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Jen SX-2000 Synthetone

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"Excellent condition, would suit a collector.

Rare little mono synth that sounds great."

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Oberheim OB-X 8 Voice Analog Synthesizer

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Pic of the inside below.

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KIMBALL CHALLENGER P5 VINTAGE MONO SYNTHESIZER ORGAN +MANY EXTRAS SN 439003

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"KIMBALL CHALLENGER P5 MONO-SYNTHESIZER
Mono or polyphonic with rhythm, split keyboard, sound-effects generator, optical-card-programmable.
Serial number: 438003
Auction includes: Kimball Challenger P5 synthesizer, 2 complete sets of optical reader cards, 2 Sight & Sound International instruction manuals, 1 Kimball owners manual, attached power cord, vinyl cover and original stand.
COSMETIC CONDITION:
FLAWS: A few keys in the upper register work intermittently. There is some discoloration from age, but zero damage. The Kimball owners manual has writing in pencil on the cover - but that's it.
POSITIVES: It's clean, its unscratched, all the buttons and lights work, the optical card reader works. The stand is solid, the cover is in good shape. This was a home used keyboard...never left the house.
WORKING CONDITION: Works as described guaranteed.

This has a real mono synthesizer with really cool sounds, as well as the standard organ sounds and drum machine. The card reader thing is really cool and unique..one of the sounds on the cards is a lead mono synth with portamento...sounds rad. The few keys on the high octave work intemittently, I suppose because they did not get played as much..they probably need contact cleaning, but work."

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Mixed Module Modular Synthesizer in Pittsburgh Case

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"It includes:

- 1 Cell 90 by Pittsburgh modular
- 1 Doepfer A-138 mixer
- 2 Doepfer A-140 ADSR
- 1 Doepfer A-132-3
- 1 Doepfer A-190-2
- 2 Tiptop audio Z3000
- 1 Harvestman filter
- 1 pgh lfo2
- 1 pgh outs
- 1 Intelijel multiple
- 15 patch cables (black and orange)"