screen grid

American  

noun

Electronics.

1. a grid placed between the anode and the control electrode in a vacuum tube, usually maintained at a fixed positive potential.

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screen grid British  

noun

1. Sometimes shortened to: screen.  electronics an electrode placed between the control grid and anode of a valve and having a fixed positive potential relative to the grid. It acts as an electrostatic shield preventing capacitive coupling between grid and anode, thus increasing the stability of the device See also suppressor grid

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Etymology

Origin of screen grid

First recorded in 1925–30

Example Sentences

And sure enough, the screen grid showed the backs of eight seniors’ heads, as they turned around for the draw.

From Washington Post • Oct. 4, 2021

Instead of just being yet another icon in the home screen grid, Amazon’s services are now deeply integrated into the user experiences Apple wants to move everybody towards.

From The Verge • Apr. 3, 2020