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Multivox MX-65

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The Multivox MX-65 Polyphonic synthesizer manufactured from 1977-1978. It has six voices. Piano, strings, clavichord, honky-tonk, piano and organ. The voices themselves are different combinations of the filter and envelope positions that you can switch between. The filter is controlled with an envelope with 3 modes. A fast attack/fast decay mode, an ‘expand’ mode with resonance emphasis, and a fast attack/slow decay mode.

The front panel is not deep, but it definitely gives you some control over the MX-65's presets.
There are envelope shape controls, an LFO (delay, depth, speed), and 3 Ensemble/Chorus modes.

Connections include Gate Out and VCF control in. The Gate Out has positive and negative polarity outputs. The VCF control in is a control voltage input or pedal control. As a cv input it is 1.3 v/octave. Very unique feature set.

This synth can be very lush, especially with a touch of fx. I have made a quick demo, with some of reverb and delay from Ableton. The string and pia

Technical Specifications
Type: Analog
Synthesis: Divide Down
Oscillators: 1
Osc Modulation: Envelope, LFO
Oscillator Notes:
6 Presets:
+Honky Tonk
Envelopes: 1
Evelope Paramerters: Attack, Decay
LFO: 1
LFO Parameters: Sine
Polyphony & Tuning
Polyphony: 61
Tuning: Standard
Modes: Polyphonic
Patches RAM: 1
Patches ROM: 6
Case: Keyboard
Keyboard: 61 keys
Controls: Knobs, Sliders, Switches
Audio Output Connections: 1/4" Phone Jack, Mono Out
Audio Output Count: 1
CV Ports: Gate Out
Control Features: VCF Input
Year Released: 1977
Year Discontinued: 1978
Used Price: $200 - convert
References & Sources

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Looking for the schematic for this synth. Anyone have any leads? Have been linked to the MusicParts countless times, but can never get a response from them. Any help is greatly appreciated. Thanks!

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