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Sarnoff also demonstrated the first use of radio on a railroad line, the Lackawanna Railroad Company's link between Binghamton, New York, and Scranton, Pennsylvania; and permitted and observed Edwin Armstrong's demonstration of his regenerative receiver at the Marconi station at Belmar, New Jersey.
The film focused primarily [5] on the three pioneers [6] of radio in America: Lee de Forest, Edwin Howard Armstrong, and David Sarnoff. [7] The program interspersed audio and musical highlights of "old time" radio with the stories, achievements, failures, scams and bitter feuds between each of the main protagonists. [8]
[63] Armstrong had arranged to have photographs taken, which he had delivered to David Sarnoff's secretary, Marion McInnis. [64] Armstrong and McInnis married later that year. [11] Armstrong bought a Hispano-Suiza motor car before the wedding, which he kept until his death, and which he drove to Palm Beach, Florida for their honeymoon. A ...
Edwin Howard Armstrong invented the superheterodyne receiver in 1918. [1] Armstrong and RCA (under David Sarnoff) had a business and technical relationship, that would last into the 1940s. Funded by RCA, Armstrong designed a radio that can receive stations easily without complex tuning or interference from other stations.
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By 1933, Edwin Armstrong had filed key patents for techniques he developed that were to eventually make FM radio successful. His professional relationship with Marion's former boss, Sarnoff, fractured when Sarnoff who was by then the President of RCA, concluded the development of FM radio was not in the best interests of RCA, which operated an ...
David Sarnoff with the first RCA videotape recorder, 1954 RCA Television Quad head 2-inch color recorder-reproducer used at broadcast studios from the late-1960s to the early 1980s [44] In 1941, shortly before the United States entered World War II, the cornerstone was laid for a research and development facility in Princeton, New Jersey called ...
David Sarnoff [citation needed] Fessenden is credited as the first to broadcast radio signals on Christmas Eve, 1906. Sarnoff proposed a chain of radio stations to Marconi's associates in 1915. Radio Edwin H. Armstrong [citation needed]