Discussion at Pittsfield: Notes on the use of a radio-frequency voltmeter

摘要

L. T. Wilson: It has been mentioned that this meter takes from 2 to 8 milliamperes, and that a displacement current flows between the shields of the same order of magnitude. It was not specified in that statement that, that charging current is of the same order of magnitude as this 2 to 8 milliamperes only at 1,000,000 cycles. Of course, at any frequency lower than that, the charging current is proportionately lower, and down at very low frequencies, it is entirely negligible.