Title :
A Screen-Grid Voltmeter and Its Application as a Resonance Indicator
Author_Institution :
Physics Department, Cornell University, Ithaca, N.Y.
Abstract :
A screen-grid voltmeter of high sensitivity is described and compared with a triode voltmeter. At low frequencies, using either the 222 or the 224 tube, it effectively covers a range of from 0.1 to 10 volts, r.m.s. At frequencies of the order of 108cycles per sec., it serves as a supersensitive indicator for a Lecher wire system. For this purpose a tuned input is used.
Keywords :
Circuits; Frequency; Leak detection; Physics; Potentiometers; Resonance; Shape; Voltage control; Voltmeters; Wires;
Journal_Title :
Radio Engineers, Proceedings of the Institute of
DOI :
10.1109/JRPROC.1930.222155
