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Audion

The Audion is an electronic detecting or amplifying vacuum tube invented by American electrical engineer Lee de Forest as a diode in 1906. Improved, it was patented as the first triode in 1908, consisting of an evacuated glass tube containing three electrodes: a heated filament (the cathode, made out of tantalum), a grid, and a plate (the anode). It is…

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Audion

Nodes56
Edges55
Triples103
Avg. degree1.96
Density0.035714
Components1

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Audion

Top relations

related to External links · 51
Audion → Also, Archived, Armstong, Audion Bulbs, Audion Detector Bulb, BLUE DISCHARGE OF GLOW, December, Digital GalleryLewis, EBchecked/topic/1262240/radio-technology/25131/The-Fleming-diode-and-De-Forest-AudionLangmuir, Empire, For, Forest, Forest's Audion Piano, IEEE, If, Includes, IRE, Irving, Its Applications, Langmuir
related to Further reading · 13
Audion → Chapter, From Marconi's Black-box, Good Ideas Come From, Hong, ISBN, MIT Press, Radio Corp, Radio Engineering Laboratories, Riverhead Books, Steven Johnson, Sungook, United States Supreme Court1934, Wireless
related to Kenotron and Pliotron · 11
Audion → Again, Coolidge, Edison, Fleming Diode, Greek, He, His, However, Kenotrons, Langmuir, X-ray
related to Patents and disputes · 11
Audion → American Fleming, De Forest, Fleming, Forest, Forest's, Great Britain, Ironically, It, John Ambrose Fleming's, November, World War
has application · 9
Audion → Audions, De Forest, For, It, Prior, Such, The, They, US Navy
is a · 1
Audion → electronic detecting or amplifying vacuum tube invented by American electrical engineer Lee de Forest as a diode in 1906

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Important terminology

vacuum de forest radio tube grid could original patent used first applications triode detector electrical device much gas electronic signal

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Audionis aelectronic detecting or amplifying vacuum tube invented by American electrical engineer Lee de Forest as a diode in 19060.90text
the Annals of the New York Academy of Sciencesinstance ofA combination of the two papers was reprinted in other journals0.80text
the transistorinstance ofthe vacuum tube has been largely superseded by solid state devices0.80text
invented in 1947instance ofthe vacuum tube has been largely superseded by solid state devices0.80text
implemented in integrated circuits in 1959instance ofthe vacuum tube has been largely superseded by solid state devices0.80text
although vacuum tubes remain to this day in such applications as high-powered transmittersinstance ofthe vacuum tube has been largely superseded by solid state devices0.80text
guitar amplifiersinstance ofthe vacuum tube has been largely superseded by solid state devices0.80text
some high fidelity audio equipmentinstance ofthe vacuum tube has been largely superseded by solid state devices0.80text
Audionhas applicationDe Forest0.60section
Audionhas applicationAudions0.60section
Audionhas applicationUS Navy0.60section
Audionhas applicationIt0.60section

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