Title :
Automatic Time-Delay Relay
Author_Institution :
Department of Terrestrial Magnetism, Carnegie Institution, Washington, D.C.
fDate :
6/1/1931 12:00:00 AM
Abstract :
The design of an automatic time-delay relay is described. For certain types of mercury-rectifier tubes no plate voltage should be applied for at least one-half minute after the filament current is turned on if the peak inverse potential exceeds 2100 volts. During a six-months´ test of this relay on a special radio transmitter it has not failed to function at any time.
Keywords :
Circuit testing; Clocks; Contacts; Magnetic circuits; Magnetic separation; Radio transmitters; Relays; Silver; Switches; Voltage;
Journal_Title :
Radio Engineers, Proceedings of the Institute of
DOI :
10.1109/JRPROC.1931.222420
