Word: zworykin
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Dates: during 1930-1939
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...particular target. Radiomen are appalled at the cost of setting up a network of ultra-short-wave stations, piping programs from station to station by cable or ordinary short-range radio-relay links. Last week was announced the invention by RCA's Inventor Vladimir Kosma Zworykin of a system designed to eliminate such costly cables...
...knife edge so that two beams fall on a photoelectric cell. If in the telescope the star image gets off the cross-wires, the two beams become unequal. The proper adjustment is then made by a mechanism in which the photoelectric current is amplified one quintillion times by a Zworykin electron multiplier...
...Patent Office as an autonomous organization. Lionized were six famed inventors: Orville Wright; Simon Lake, pioneer submarine experimenter who is currently trying to salvage $4,000,000 in gold from the hulk of an old British frigate at the bottom of New York's East River; Vladimir Kosma Zworykin, RCA-Victor television ace; William David Coolidge, General Electric's No. 1 x-ray researcher; Lee De Forest, inventor of the audion radio tube; and Leo Hendrick Baekeland, inventor of Bakelite...
Apparatus. The two rival electronic scanners which have left other rivals behind are the Farnsworth dissector tube and the iconoscope developed by RCA-Victor's famed Vladimir Kosma Zworykin. Both are good enough to transmit 6-by-8- in. images with the clarity of oldtime cinemas. The pictures are, in effect, divided into hundreds of horizontal lines and scanned line by line; 24 to 30 complete pictures are transmitted in a second...
...Zworykin sender the image to be televised falls on a small sheet of mica covered with millions of microscopic dots of photosensitive cesium. Each tiny dot receives an electric charge according to the amount of light that falls on it. A beam of electrons shot from a cathode tube and controlled by rapidly oscillating magnetic fields weaves back & forth across the sheet of mica 6,000 times per second. The beam discharges the electropositive tension in the dots, and the changing pattern of this discharge modulates a current passing through the sheet. The modulated current, fed into a radio transmitter...