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Report of Correct Capacitance Measurement Procedure on Metal Base Shell Vacuum Tubes
The importance of the correct and accurate measurement of the direct inter-electrode capacitances of vacuum tubes need no special emphasis. The Naval Research Laboratory has been making such measurements over a number of years in connection with work pertaining to tubes submitted for Navy type approval. The results of the measurements at this Laboratory were, on occasion, at variance with some of the tube manufactures. One manufacturer in particular has submitted a number of transmitting tubes with capacitance data specially obtained for comparison.
Approved For Public Release