thermionic triode

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• triode — ► NOUN 1) a thermionic valve having three electrodes. 2) a semiconductor rectifier having three connections. ORIGIN from TRI (Cf. ↑tri ) + ELECTRODE(Cf. ↑electrode) …   English terms dictionary

• Triode — A triode is an electronic amplification device having three active electrodes. The term most commonly applies to a vacuum tube (or valve in British English) with three elements: the filament or cathode, the grid, and the plate or anode. The… …   Wikipedia

• thermionic valve — noun electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope • Syn: ↑tube, ↑vacuum tube, ↑thermionic vacuum tube, ↑thermionic tube, ↑electron tube • Hypernyms: ↑electronic device …   Useful english dictionary

• thermionic tube — noun electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope • Syn: ↑tube, ↑vacuum tube, ↑thermionic vacuum tube, ↑electron tube, ↑thermionic valve • Hypernyms: ↑electronic device …   Useful english dictionary

• thermionic vacuum tube — noun electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope • Syn: ↑tube, ↑vacuum tube, ↑thermionic tube, ↑electron tube, ↑thermionic valve • Hypernyms: ↑electronic device …   Useful english dictionary

• triode — noun A thermionic valve containing an anode, a cathode, and a control grid; small changes to the charge on the grid control the flow from cathode to anode which making amplification possible See Also: diode, pentode, ode …   Wiktionary

• triode — [ trʌɪəʊd] noun a thermionic valve having three electrodes. ↘a semiconductor rectifier having three connections. Origin early 20th cent.: from tri + electrode …   English new terms dictionary

• triode — n. 1 a thermionic valve having three electrodes. 2 a semiconductor rectifier having three connections. Etymology: TRI + ELECTRODE …   Useful english dictionary

• Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …   Wikipedia

• List of vacuum tubes — This is a list of vacuum tubes or thermionic valves. Before the advent of semiconductor devices, hundreds of tube types were used in consumer and industrial electronics; today only a few types are still used in specialized applications. Contents… …   Wikipedia

• John Ambrose Fleming — Infobox Scientist name = Sir J. Ambrose Fleming caption = birth name = John Ambrose Fleming birth date = birth date|1849|11|29|mf=y birth place = Lancaster, Lancashire, England death date = death date and age|1945|4|18|1849|11|29|mf=y death place …   Wikipedia