Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
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noun
A tetrode in which the voltage on the screen grid is higher than that on the control grid, causing the plate current to decrease as plate voltage increases; was used in oscillators.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Blend of dynamo + -tron.
