File:Moorhead electron relay tube.jpg
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editDescriptionMoorhead electron relay tube.jpg |
English: An early triode, the Moorhead electron relay, was manufactured by Otis Moorhead beginning in 1916 as a copy of the Cunningham "Audiotron", under Lee De Forest's Audion patents. This version is from around 1919. It is a "soft" vacuum triode like the Audion, with some residual air left in the tube. The ionization of the gas when a voltage was applied gave it greater sensitivity as an AM detector, but limited the plate voltage so it couldn't produce much power. It consisted of a partially evacuated glass tube with a tungsten filament down the center of the tube, surrounded by a helical wire grid, surrounded by a cylindrical aluminum plate. |
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Source | Retrieved October 14, 2013 from Ellery W. Stone (1919) Elements of Radiotelegraphy, D. Van Nostrand Co., New York, p. 252, plate 33 on Google Books |
Author | Ellery W. Stone |
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current | 05:27, 20 January 2014 | ![]() | 820 × 1,478 (279 KB) | Chetvorno (talk | contribs) | User created page with UploadWizard |
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