Fleming valve
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Fleming valve — schematic from US Patent 803,684. The Fleming valve, also called the Fleming oscillation valve, was a vacuum tube diode invented by John Ambrose Fleming and used in the earliest days of radio communication. As the first vacuum tube, the IEEE has… … Wikipedia
fleming valve — “ noun Usage: usually capitalized F Etymology: after Sir John Ambrose Fleming died 1945 English electrical engineer, its inventor : diode * * * Electronics. (formerly) a diode. [named after Sir John Ambrose Fleming (1849 1945), English inventor… … Useful english dictionary
Fleming, Sir John Ambrose — ▪ British engineer born Nov. 29, 1849, Lancaster, Lancashire, Eng. died April 18, 1945, Sidmouth, Devon English engineer who made numerous contributions to electronics, photometry, electric measurements, and wireless telegraphy. After … Universalium
valve — [ valv ] n. f. • 1752; « battant de porte » 1560; sens du lat. valva I ♦ 1 ♦ Chacune des deux parties de la coquille (dite bivalve) de certains mollusques et crustacés. « La valve rainurée d une coquille de Saint Jacques » (Proust). ♢ (1771) Bot … Encyclopédie Universelle
valvé — valve [ valv ] n. f. • 1752; « battant de porte » 1560; sens du lat. valva I ♦ 1 ♦ Chacune des deux parties de la coquille (dite bivalve) de certains mollusques et crustacés. « La valve rainurée d une coquille de Saint Jacques » (Proust). ♢… … Encyclopédie Universelle
Fleming — (Ian) (1908 1964) auteur anglais des James Bond (à partir de Casino royal, 1953). Fleming (Victor) (1883 1949) cinéaste américain: le Magicien d Oz (1939), Docteur Jekyll et M. Hyde (1941). Il signa seul Autant en emporte le vent (1939), mais d… … Encyclopédie Universelle
Fleming — Flẹming, 1) Sir (seit 1944) Alexander, britischer Bakteriologe, * Lochfield (bei Ayr) 6. 8. 1881, ✝ London 11. 3. 1955; ab 1929 Professor in London; entdeckte während seiner Tätigkeit (ab 1906) am bakteriologischen Laboratorium im Londoner… … Universal-Lexikon
Valve amplifier — A valve amplifier or tube amplifier is a type of electronic amplifier that make use of vacuum tubes instead of solid state semiconductor devices (such as transistors). As any other electronic amplifier they serve to increase the power and/or… … Wikipedia
Valve de Fleming — Diode à vide Double diode 5Y3 Di … Wikipédia en Français
Fleming , Sir John Ambrose — (1849–1945) British physicist and electrical engineer Fleming, who was born at Lancaster, studied for a short time at University College, London, but left before graduating. However, he continued his work for a science degree in his leisure hours … Scientists
