control grid

British  

noun

1. electronics another name for grid, in a tetrode, pentode and similar devices

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control grid Scientific  

1. An electrode used in triodes, tetrodes, and pentodes, placed between the cathode and the plate (usually very close to the cathode). Electrons emitted by the cathode must pass through the control grid to reach the positively charged plate and create current flow through the tube, but a negative voltage on the intervening control grid impedes that flow; the more negative the control grid, the smaller the flow. Small variations in the voltage of the grid thus have a great effect on the current flow.

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Example Sentences

Though you can’t control factors like distance, you can control hiring, packing and overall weight.

From Seattle Times • Jul. 19, 2023

"The potential for coercion and undue influence over a day laborer audience is high, especially when the training and consent are administered by those who control hiring and firing of workers," she said.

From Reuters • Jun. 24, 2011