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triode

[trahy-ohd] /ˈtraɪ oʊd/
noun, Electronics.
1.
a vacuum tube containing three elements, usually anode, cathode, and control grid.
Origin of triode
1920-1925
1920-25; tri- + (electr)ode
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for triode
  • The plant continues to utilize the original design of a tetrode driving a super power triode.
  • It is all solid state, except for the triode transmitter, to provide a reliable product with extremely long operating life.
British Dictionary definitions for triode

triode

/ˈtraɪəʊd/
noun
1.
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 It has been replaced by the transistor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.
any electronic device, such as a thyratron, having three electrodes
Word Origin
C20: tri- + electrode
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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triode in Science
triode
  (trī'ōd')   
An electron tube used mostly for signal amplification, consisting of a cathode and anode (or plate) as in a diode, and an intervening wire mesh called the control grid. With little voltage on the grid, large currents can flow between the cathode and plate, but small variations in the voltage on the grid cause large variations in this current, allowing for large amplification of a signal applied to the control grid. See also pentode, tetrode.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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