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pentode
vs.
triode
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pentode
pentode vs. triode
pentode
[
pen
-tohd ]
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noun
a vacuum tube having five electrodes, usually a plate, three grids, and a cathode, within the same envelope.
triode
[
trahy
-ohd ]
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noun
a vacuum tube containing three elements, usually anode, cathode, and control grid.
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