The videokalos colour synthesizer was developed by Peter Donebauer as a "video instrument". The instrument was invented at the Royal College of Art, using studio cameras aligned as an "electronic painter's palette". The instrument allowed for five layers of images, that separates television broadcasts into their red, green, and blue constituent colours. The synthesizer was first produced in 1975-76, with the help of Richard Monkhouse. It has been used to perform video art "live".
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Videokalos colour synthesizer Wikipedia(Text) CC BY-SA