The ‘Givelet’ or ‘Coupleux-Givelet Organ’ Armand Givelet & Edouard Eloi Coupleux, France. 1930

Armand Givelet & Edouard Coupleux at the paper-punch controls of the 'Givelet'

Armand Givelet & Edouard Coupleux at the paper-punch controls of the ‘Givelet’ c1932

The last instrument of the Givelet – Coupleaux collaboration was the ‘Coupleaux -Givelet Organ’ or ‘Givelet’. The Givelet was a unique instrument that combined vacuum tube oscillators with a sound control system using a punched paper roll in a way similar to a player piano to define the sound synthesis. Pitch, volume, attack, envelope, tremolo and timbre could be controlled by cutting and splicing paper rolls and like the “Wave Organ“, the Givelet was polyphonic. The technique of using punched paper “programs” was not exploited until fifteen years later in the 1950’s with the RCA Synthesiser.  Givelets and Coupleaux’s instrument was designed to be a commercial and cheap replacement for pipe organs and utilise the ability for ‘silent recording’ or direct injection into radio transmitter. The Givelets were installed in churches around France and at a broadcasting radio station in Paris. The Givelet eventually lost out commercially to the more efficient and less complex  Hammond Organ.

Givelet of 1930

The Givelet-Coupleux Organ of 1930 played by Armand Givelet

Patent Documents


Sources:

A.J.Givelet: ‘Les Instruments de Musique à oscillations électriques: Le Clavier à Lampes ‘, Génie civil, xciii(1928)

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