Henry and Hora's modern electricity; a practical working encyclopedia (1915)
Henry, James. [from old catalog], Hora, Karel Jan, 1881- [from old catalog] joint author · Chicago, Laird & Lee, inc. · leaf 273
riber, the circuit beingcomplete through the line wire, the jack j, the plug e, and 270 MODERN ELECTRICITY its cord, to contact / of key c and thence through spring ofkey b to the telephone set /, which contains a receiver, atransmitter, induction coil andbattery, and ends in theground connection,… … ELECTRICAL ENGINEERING 271 the ringing key a, thus throwing into circuit his own magneto-generator g, whose handle he turns. Thus a circuit isestablished from the ground in the exchange, through themagneto-generator g, the contact 2 of key a, cord and plugrfand through the jack with the desired…
Electrical engineering
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