The standard electrical dictionary; a popular dictionary of words, terms, and phrases, used in the practice of electrical engineering (1897)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · New York, H. W. Henley & co. · leaf 462
ator or wooden box of such proportions andsize as to reinforce the sound. This enables a relay to act as asounder, its weak sounds being virtually magnified so as to beaudible. Relay Connection. A connection used in telegraphy, includinga local battery, with a short circuit normally open, but…
Electricity
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