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 91
ceiver on the telephone line to insure the ringing of the bells even if a receiver be leftoff the hook. When the condenser is added, connect the yellow wire from REC to theupper screw marked COND and the two wires from the condenser to the screws markedCOND; as shown. 2,184 HAWKINS ELECTRICITY… … Transmitter Wiresfrom Local CableLine Cable Binding Posts CombinedJacAs & Stgna/s C/ear/ng out Drops A/o. 34 fnterrupter forFurnishing Ringing Current Loca/Ceb/e ConnectingRack 7 TwistedPair Carbon f+>
Electrical engineering
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