a high-resistance device that permits excessive charges on the grid to leak off or escape.
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How to use grid leak in a sentence
The vacuum tube amplifier and the grid leak are the only new pieces of apparatus you need and not described before.
The way a grid leak and vacuum tube detector with a one-step amplifier are connected up is shown at A in Fig. 44.
The grid leak is connected in the lead from the grid to the aerial to keep the voltage on the grid at the right potential.