screen grid


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screen grid

[′skrēn ‚grid]
(electronics)
A grid placed between a control grid and an anode of an electron tube, and usually maintained at a fixed positive potential, to reduce the electrostatic influence of the anode in the space between the screen grid and the cathode. Also known as screen.

screen grid

A grid used in tetrode and pentode vacuum tubes that reduces the electrostatic influence of the plate on the control grid. A fixed bias voltage is applied to the screen grid, which sits between the control grid and plate (anode). The screen grid's fixed potential helps isolate the control grid from any fluctuations that occur on the plate. See tetrode and pentode.
References in periodicals archive ?
Until now, Bomberman has been at home on his game screen grid, trundling up and down the rows and columns, laying his deadly explosives all over the place, all making for a fantastic multiplayer experience.
ALIGN the new screen grid to the side of the frame so it goes in square.
As the Underwood taps on, we see a two-room cabin on a dusty flat become a comfortable bungalow with flower and vegetable gardens, shade trees, three children romping on the hard-won lawn, a Ford by the barn, the miracle of electric wires running along the road, Amos 'n' Andy on the "New Majestic Perfected Screen Grid Superheterodyne' radio.