Word: televisor
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Dates: during 1920-1929
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...Televisor. In London, a concern called Television Ltd. obtained licenses to retail the "televisor," a radio device invented by John L. Baird* of Glasgow that permits "looking in" as well as listening in. Broadcasting from a televisor station in London was to begin at once. The receiver, costing £30, consists of a point of light moving swiftly over a revolving field of ground glass. The motion of the point of light is governed by current received from the transmitting station, where the image of an object or person is made to pass over a photo-electric cell at immense...
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