The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 146
uc-tive resistances. The steadyfeeding current from thecentral battery passesequally through the twopaths open to it and nonethrough the receiver if allthe resistances are equal. Common Battery WallSets.—The type of sub-scribers instrument mostgenerally used for C.B. ex-changes is shownin Fig.… … Fig. 134 124 PRACTICAL TELEPHONE HANDBOOK and at the same time be kept nearly vertical, which is the best position for working. Fig. 135 gives the connections of the Western Electric Co.s standard type. Table Set.—The most common form of C.B. table set is that shown in Fig. 136, The transmitter,…
Telephone
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