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triode

[ trahy-ohd ]

noun

, Electronics.
  1. a vacuum tube containing three elements, usually anode, cathode, and control grid.


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 It has been replaced by the transistor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
“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


triode

/ trīōd′ /

  1. 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.
  2. See also pentode


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Word History and Origins

Origin of triode1

First recorded in 1920–25; tri- + (electr)ode
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Word History and Origins

Origin of triode1

C20: tri- + electrode
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triotrioecious