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Dereux organlocked

  • Hugh Davies

Extract

An electronic organ, several models of which were developed by Jean-Adolphe Dereux (1896–1968) in Paris between about 1950 and 1955, and manufactured by him from the mid-1950s (earlier he had experimented with free-reed models). The standard two-manual electronic model with a 32-note pedalboard was designed for use in churches, and some smaller home organs were also made. The sounds are generated by 12 rotating electrostatic tone-wheels, on which are inscribed a total of 756 waveforms; these are based on oscillographic patterns produced by different registers on pipe organs, mainly built in the 19th century by Cavaillé-Coll. A sound diffuser rotates in front of the high-frequency loudspeaker to reduce the aural impression of too great a directionality for the higher pitches. In ...

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