bn:00061438n
Noun Concept
Categories: Vacuum tubes, Dutch inventions
EN
pentode  EF36  penthode
Definitions
Relations
Sources
EN
A pentode is an electronic device having five electrodes. Wikipedia
Electronic device having five active electrodes; the term most commonly applies to a three-grid amplifying vacuum tube Wikidata
WordNet 3.0 & Open English WordNet
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Wikipedia
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Wikidata
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