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dynatron

[dahy-nuh-tron] /ˈdaɪ nəˌtrɒn/
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
1915-1920
1915-20; dyna- + -tron
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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