control grid

Noun
  1. An electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube (synset 103463484)
    is a type of: electrode - a conductor used to make electrical contact with some part of a circuit
    is a part of: electron tube, thermionic tube, thermionic vacuum tube, thermionic valve, tube, vacuum tube - electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
    same as: grid

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