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dynatron

[dahy-nuh-tron]
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noun Electronics.
  1. a tetrode, once frequently used as an oscillator in radio, in which an increase in the plate voltage results in a decrease in the plate current because of emission of electrons from the plate.

Origin of dynatron

First recorded in 1915–20; dyna- + -tron
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018