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Oscillographic Method of Measuring Positive-Grid Characteristics

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1 Author(s)
Livingston, O.W. ; Vacuum Tube Engineering Department, General Electric Company, Schenectady, N.Y.

In testing large high-vacuum tubes it is difficult to take positive-grid characteristic data using ordinary voltmeters and ammeters since the heat dissipated would destroy the tube before readings could be taken. This article describes a method of applying the desired voltages for a very short time so that overheating of the tube under test is not excessive. Readings of voltage and current are taken oscillographically.

Published in:

Proceedings of the IRE  (Volume:28 ,  Issue: 6 )