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pentode 
electronic device having five active electrodes; the term most commonly applies to a three-grid amplifying vacuum tube
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Instance of electronic component,
vacuum tube
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Subcategories

This category has the following 21 subcategories, out of 21 total.

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7

C

E

G

P

R

S

Media in category "Pentodes"

The following 109 files are in this category, out of 109 total.