pentode

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Related to pentode: triode, tetrode

pentode

(ˈpɛntəʊd)

1. (Electronics) an electronic valve having five electrodes: a cathode, anode, and three grids

2. (Electronics) (modifier) (of a transistor) having three terminals at the base or gate

[C20: from penta- + Greek hodos way]

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Noun

pentode - a thermionic tube having five electrodes

electron tube, thermionic tube, thermionic vacuum tube, thermionic valve, vacuum tube, tube - electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope

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References in periodicals archive ?

Pentode applied the mathematics of Black Holes in the Universe, and showed that a singularity, a region of infinite curvature in space time, laid in our distant past....the point from which came the Big Bang!

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External view of individual elements of the modern electrovacuum pentode (from left to right: filament, heated cathode, three metal grids, anode, at the top of the mentioned EL elements--details of their attachment) [7]

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