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Thursday, August 07, 2025

Fully Serviced 1974 Moog White Elephant CDX-0652 Vintage Cordovox Combo Organ & Synthesizer

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Moog CDX 0652 video upload by tiff sea



via this Reverb listing

"This synthesizer/organ was nicknamed the 'White Elephant'. It was built in Italy in 1974 by Cordovox. It combines a Thomas organ with a Moog Satellite shared on the upper manual.

The synthesizer voices play only on the upper manual, while the organ voices play on both, with organ and synth sections simultaneously available on the upper manual. The CDX-0652 also includes a batch of 9 preset synthesizer voices which don't appear on a Moog Satellite. The sonic options available are vast, with banks of switches, buttons, and sliders to shape both the combo organ and Moog circuitry. The Moog bass signal can also be accessed on the lower manual and blended with the organ, and the combo organ even has a full percussion bank.

CDX-0652

A dual-manual combo organ with a Moog Satellite grafted onto it. I understand that the Satellite had a very thin sound, nothing like the MiniMoog. It had only a single oscillator and several preset sounds, similar to other semi-preset synths like the Arp Pro Soloist and the Roland SH-2000.

Thomas bought the rights to the Satellite from Moog. The CDX-0652 was designed by Thomas in cooperation with Cordovox. A Thomas version of the Satellite (the "Synthi 1055) and the CDX-0652 were both manufactured by EME, the same outfit that made most Italian Vox organs. Thomas also marketed the Satellite under the "Orbit" name on some of their home organs.

The synthesizer voices play only on the upper manual, organ voices play on both. Organ and synth voices may be played simultaneously on the upper manual. It includes a batch of 9 preset synthesizer voices that don't appear on a Satellite. Unlike the 0642, this one seems to have all of the organ features (many of which seem identical to the 0642) available on both keyboards.

Controls:

Top Panel:

Tab: Moog On/Off
Buttons: Piano, Sax, Guitar, Flute, Banjo, Clarinet, String, Trumpet, Horn, Preset
*Tabs 1: Octaves: 1 & 2 Modulation: Rep, Sine/Square, Vib, Trem
*Tabs 2: Glide, Sust
*Tabs 3: Brass: Mute, Open Reed: Thin, Hollow, Full, Bright
*Tabs 4: String: Bow, Pluck Strike, Pick Bell, Lunar
Left of Upper Keyboard:

Knob: Tuning
Black Sliders: Flute Voices: 16', 8', 5-1'3, 4', 2-2'3, 2' Mixture, Volume Lower, Volume Upper
*White Sliders: Filter: Contour, Color, Emphasis Modulation: Rate, Depth Glide, Volume
Left of Lower Keyboard:

Buttons: Coupler, Sustain, Bass
Sliders: Bass Min/Max, Guitar Bass, Vibrato Depth
Right of Lower Keyboard:

Buttons: Percuss, Repeat, Mono
Sliders: 8', 4', 2-2/3', 2', Decay Short/Long, Repeat Rate Slow/Fast

Work done: fabricated new key actuators for synth section. Fixed divider causing top synth note not to work, repaired synth signal to main output, LFO on synth, replaced TDA-470 transistor array that was causing missing footage on organ's G notes, replaced filter supply capacitors on synth and organ, cleaned all controls and key contacts, replaced missing white fader caps on synth section with Vestax caps."

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