Harvestman Piston Honda Wavetable Module

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Harvestman Stillson Hammer Burst Generator Module

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SN 0100 ?

WMD Geiger Counter

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WMD Gamma Wave Source Wavetable VCO Module

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Harvestman Hertz Donut DCO Module

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Korg MS-03 SN 180860

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Nord G2 Modular Synthesizer

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Roland MPU101 Midi to CV Converter SN 561808 with Original Box

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"A very useful unit to interface with your old analog synthesizers, allows up to four channels of midi to cv conversion including CV, gate, dynamics and several others like mod, aftertouch and velocity. This MPU101 is fully functional and in near mint shape. Even includes original box! See pictures below for more details."

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Access Oberheim Matrix Synth Programmer

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Before Access made synths they made controllers. They also made a Waldorf Microwave controller for the original Microwave.

I'm not 100% sure, but I'm guessing this requires the latest OS 2.13 on the Matrix-6 for it to work.  Previous OS versions do not respond to MIDI sysex.  I believe all versions of the Matrix-1000 work as it was released after the Matrix-6. 

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Jen Syntar Vintage Guitar Synth 1979 with Patch Overlays

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"It is a Minimoog rip-off for guitarists!

It has the basic signal-layout of the old Moog. Instead of a keyboard there is an input socket on the front for connecting to a custom set of glue-on guitar pickups (no joke). 

 

It is a simple but quite powerful mono-synth. Two VCOs capable of tri, saw and pulse/square waves. VCO2 is tuned relative to VCO1 for some fat detuning or those classic 5ths and 7ths. Sound is fed though a lowpass VCF (24dB/oct) before reaching the VCA. VCA and VCF have independent envelopes of the atypical ADS variety (no release). There is also an LFO and Glide control."