A New Instrument
Turns "the Howls" . to Music AFTER years of work on an inf "- ment that will produce m when. a person waves his hands bef it; a Russian scientist recently it.to commercial use. It has broadcast qousic over the radio and is being demoustrated for sale to the public. "The cabinet of the instrument is shaped somewhat like a typewriter eover with:a metal upright post at one corner. ‘Within the cabinet, eight valves arranged in two oscillating circuits produce a ‘heterodyne beat note similar to those which cause howls from a radio: receiyer when two or more broadcasting stations interfere with one another. The pitch of the note is controlled by the position of the operator‘s right hand relative to the metal post. A metal loop antenna is provided at the. other. side of the device to control the volume. When the left hand is rais-ed-:or lowered above this antenna, the . volume increases or decreases proportionately.. The music produced someWhat regembleg the tones of a violin or ‘cello. >
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https://paperspast.natlib.govt.nz/periodicals/RADREC19300110.2.33
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Radio Record, Volume III, Issue 26, 10 January 1930, Page 10
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170A New Instrument Radio Record, Volume III, Issue 26, 10 January 1930, Page 10
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