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grid bias

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noun Electronics.
  1. the potential difference applied between a grid and the cathode of a vacuum tube.
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Origin of grid bias

First recorded in 1925–30
Also called C-bias.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for grid bias

grid bias

noun
  1. the fixed voltage applied between the control grid and cathode of a valve
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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