Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 132
ralizing the magnetic effect of the former. The armature, therefore, isattracted and held in the closed position as shown in fig. 3,072. to respond to the signals of the key at the distant station, shall notrespond to the signals of its associate key. Ques. How does the diplex system operate? Ans.… … 30>c fr— 9< £ g tj O <D CTj 22 < ft-- O O ^•aw a\a a) O cfi M o+^ G^ £§ ^o >tjJ2 c0«i g55 »g g W| ■^^IS-s-^?5 <U 4J <D Hi Q Do) ^o^P, ■HiJJ2rt3J!«S 3 aJ a> 09 w. ^ £ <u . <u <u o •=* ** ^ - ° *53 ill U2 o •§S«§^.t3£ o S- M <D S «^^2-^S 0.0 M o^g^oW • f* U<>…
Electrical engineering
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