Title :
A Chopper Utilizing Contacts Vibrating in a Vacuum
Author_Institution :
Eastern Engineering Company, New Haven, Connecticut
fDate :
5/1/1934 12:00:00 AM
Abstract :
A chopper approximately the size of a radio receiving tube, for small voltages and currents, is described. A tiny contacting member with microscopic working gap provides nearly noiseless operation at 120 cycles. Vacuum contacts give proper operation at millivoltages much below values for which contacts in air are suitable.
Keywords :
Choppers; Coils; Coupling circuits; Electron tubes; Glass; Iron; Microscopy; Steel; Temperature; Voltage;
Journal_Title :
Radio Engineers, Proceedings of the Institute of
DOI :
10.1109/JRPROC.1934.226364
