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The practical telephone handbook and guide to the telephonic exchange (1906)

Poole, Joseph · New York, Macmillan Co. · leaf 542

An illustration from The practical telephone handbook and guide to the telephonic exchange, 1906, leaf 542
hich all theother subscribers lineswould be multipled. For exchanges up to 1000subscribers it is necessary toadopt a different system,the lines being then dividedinto groups of 100, the linesof which are multipled onthe banks of about 10switches, now called con-nectors, forming, as it were,a… … douhue: do^ Fig. 474.—Vertical Lift andRelease Mechanism tipled in banks of 10 on each selector, giving 10 sets of 10junction lines to 10 groups of 100 subscribers. On the con-nectors the junction lines are connected to the mechanismand the wipers, as are the subscribers lines on the…

Telephone

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