Beam-power tube

a vacuum tube in which the stream of electrons flowing to the plate is focused by the action of a set of auxiliary, charged elements, giving an increase in output power.


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  • Beam reach

    See under reach (def 27). to get to or get as far as in moving, going, traveling, etc.: The boat reached the shore. to come to or arrive at in some course of progress, action, etc.: Your letter never reached me. to succeed in touching or seizing with an outstretched hand, a pole, etc.: to […]

  • Beam riding

    noun a method of missile guidance in which the missile steers itself along the axis of a conically scanned microwave beam

  • Beam sea

    a sea striking the vessel at right angles to its keel. Historical Examples For the storm is rising, and a beam sea sends wave after wave against my ports. An Ocean Tramp William McFee From time to time it careened like a blunt-nosed barge in a beam sea. The Million Dollar Mystery Harold MacGrath Behind […]

  • Beam search

    beam search algorithm An optimisation of the best first search graph search algorithm where only a predetermined number of paths are kept as candidates. The number of paths is the “width of the beam”. If more paths than this are generated, the worst paths are discarded. This reduces the space requirements of best first search. […]

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