Control Grid

The control grid is an electrode used in thermionic valves (vacuum tubes) used to modulate the flow of electrons in the cathode to anode or plate circuit.

Read more about Control Grid:  Operation, Construction, Effects of Grid Position, Multiple Control Grids, Grid Variations

Famous quotes containing the word control:

    “Knowledge in the form of an informational commodity indispensable to productive power is already, and will continue to be, a major—perhaps the major—stake in the worldwide competition for power. It is conceivable that the nation-states will one day fight for control of information, just as they battled in the past for control over territory, and afterwards for control over access to and exploitation of raw materials and cheap labor.”
    —Jean François Lyotard (b. 1924)