The keyboard was not velocity or aftertouch sensitive, and there were no performance controls. The standard installation employed a 25-key, C-to-C mini keyboard, positioned above the organ's two full sized manuals, as can be seen in the photo.
Preset sounds were hard-wired and were generally typical of the era they varied depending on the model of organ that the synth was incorporated into. The Orbit's architecture was very basic, with a single VCO, a low pass filter of some type, a VCA, and an AR envelope generator, along with various bits of dedicated modulation circuits. (Compare to the Moog Satellite, which was incorporated into organs built by Thomas but was also available as a stand-alone unit.) The Orbit was not made or sold as a stand-alone synth it was only available incorporated into various models of Wurlitzer electric organs. Courtesy of Ī monophonic preset synthesizer offered by the organ maker Wurlitzer in the early 1970s.
Wurlitzer model 605 organ with Orbit III synth (top manual) installed.
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