bn:00076715n
Noun Concept
Categories: Vacuum tubes
EN
tetrode  bi-grid valve  screen-grid  screen-grid tube  screen grid
Definitions
Relations
Sources
EN
A tetrode is a vacuum tube having four active electrodes. Wikipedia
An electronic device with four active electrodes, such as a vacuum tube Wikipedia Disambiguation
Electronic device having four active electrodes; the term most commonly applies to a two-grid amplifying vacuum tube Wikidata
WordNet 3.0 & Open English WordNet
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Wikipedia
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Wikidata
EN