Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 682
e Lome position does not leavehe station so that it cannot be called up. Only four stations are shown,»ut the system can be extended to include as large a number as may belesirable. The usual telephone sets, consisting of a microphone trans-mitter, induction coil, receiver, hook switch, two cells… … Fig. 46. In Fig. 46 one binding-post of each telephone is connected to the commonreturn wire, and the other binding-post is connected to both the lever arm,s, and the individual line wire belonging to that particular station. The home button in this last system is the first on the left and is not…
Electrical engineering
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