Description of Naval Research Laboratory Vacuum Tuba Capacitance Measuring Equipment Range - 0.003 to 100 μμf

摘要

The measurement of the direct interelectrode capacitances of vacuum tubes with accuracy, rapidity, and reliability has grown in importance as new types have made their appearance. The importance of accurate measurements for shielded grid tubes and for tubes employed in ultra-high frequency work has received added significance. This pamphlet describes an improved means and essential apparatus developed for making these measurements