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suppressor grid[sə′pres·ər ‚grid]
A grid placed between two positive electrodes in an electron tube primarily to reduce the flow of secondary electrons from one electrode to the other; it is usually used between the screen grid and the anode. Also known as suppressor.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
suppressor gridA grid used in pentode vacuum tubes that suppresses interference or secondary electron flow caused by electrons that bounce off or are reflected by the plate. The suppressor grid sits between the screen grid and plate (anode). By applying a voltage to the suppressor grid at or near the cathode potential, spurious current flow is contained between the plate and suppressor grid, and leakage to other elements in the tube is limited. See pentode.
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