Meanings
nouncontrol grid (plural control grids)
plural control grids
- An electrode used in amplifying thermionic valves (vacuum tubes) such as the triode, tetrode and pentode, used to control the flow of electrons from the cathode to the anode. It usually consists of a cylindrical screen or helix of fine wire surrounding the cathode, and is surrounded in turn by the anode.
Synonyms & antonyms
nounan electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube
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Synonym sets from Open English WordNet, CC BY 4.0.
Cite this entry
APA
control grid. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/control%20grid
MLA
“control grid.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/control%20grid. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “control grid,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/control%20grid.
Source: control grid on Wiktionary, CC BY-SA 4.0.