triode

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triode

tri·ode

(trī′ōd′)

An electron tube used mostly for signal amplification, consisting of a cathode, an anode, and an intervening wire mesh called a control grid.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

triode

(ˈtraɪəʊd)

1. (Electronics) an electronic valve having three electrodes, a cathode, an anode, and a grid, the potential of the grid controlling the flow of electrons between the cathode and anode. It has been replaced by the transistor

2. (Electronics) any electronic device, such as a thyratron, having three electrodes

[C20: tri- + electrode]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

tri•ode

(ˈtraɪ oʊd)

n.

a vacuum tube containing three elements, usu. anode, cathode, and control grid.

[1920–25; tri- + (electr) ode]

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Noun

triode - a thermionic vacuum tube having three electrodes; fluctuations of the charge on the grid control the flow from cathode to anode which makes amplification possible

electron tube, thermionic tube, thermionic vacuum tube, thermionic valve, vacuum tube, tube - electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope

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(355) For example, comparing these metrics between diodes and triodes, or between traditionally purified EPO and recombinant EPO, can provide useful indications of the relative value of an improved technology over a basic patented invention.

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From 1985 to the present, he has also employed the schematic imagery of classical electronics--resistors, capacitors, batteries, ground, coils, lamps, switches, plus diodes, triodes, pentodes--in pseudo-circuits that link figures.