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A vacuum-tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry. While the history of mechanical aids to computation goes back centuries, if not millennia, the history of vacuum tube computers is confined to the middle of the 20th century. Lee De Forest invented the triode in 1906. The ...
Elmer Tiling Cunningham (September 1, 1889 – June 14, 1965) was an American entrepreneur and businessman, specializing in vacuum tubes and radio manufacturing. He is best known for being the most successful business person to produce counterfeit (AKA bootleg) or unlicensed vacuum tubes (1915-1920).
Later thermionic vacuum tubes, mostly miniature style, some with top cap connections for higher voltages. A vacuum tube, electron tube, [1] [2] [3] thermionic valve (British usage), or tube (North America) [4] is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.
Machlett Laboratories was a Northeastern United States-based company that manufactured X-ray and high-power vacuum tubes. Machlett was a large producer of the tubes and developed accessories to be used with them as well. For its contributions to World War II efforts, the US government gave it an "E" award in 1945.
The first prototype Fleming valves, built October 1904. Early commercial Fleming valves used in radio receivers, 1919 Fleming valve schematic from US Patent 803,684.. The Fleming valve, also called the Fleming oscillation valve, was a thermionic valve or vacuum tube invented in 1904 by English physicist John Ambrose Fleming as a detector for early radio receivers used in electromagnetic ...
The Great Gatsby is a 2000 British-American historical romantic drama television film, based on the 1925 novel of the same name by F. Scott Fitzgerald.It was directed by Robert Markowitz, written by John J. McLaughlin, and stars Toby Stephens in the title role of Jay Gatsby, Mira Sorvino as Daisy Buchanan, Paul Rudd as Nick Carraway, Martin Donovan as Tom Buchanan, Francie Swift as Jordan ...
The Great Gatsby is a 1949 American historical romance drama film directed by Elliott Nugent, and produced by Richard Maibaum, from a screenplay by Richard Maibaum and Cyril Hume. The film stars Alan Ladd , Betty Field , Macdonald Carey , Ruth Hussey , and Barry Sullivan , and features Shelley Winters and Howard Da Silva , the latter of whom ...
The Geissler tube was used for entertainment throughout the 1800s and evolved around 1910 into commercial neon lighting. Advances in Plucker and Geissler's discharge tube technology developed into the Crookes tube , with which the electron was discovered in 1897, and in 1906 into the amplifying vacuum tube , the basis of electronics and long ...