The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 492
0^/8 ^—^ 7^=^ L^^r—^-A^ INSULA … ( j 4oooQ iooQ ioQ Qio Qioo Qioool--f O t-joooVJ LmooH -io v-;:./ioV- W400>- --toooV- • --- ■ l- -• --BRIDGE T , BRIDGE BRIDGE [TERMINALS Fig. 440.—Plan and Connections of Silvertown Test Set 464 PRACTICAL TELEPHONE HANDBOOK The battery of 36 cells for the latter test, and another of 3 cellsfor…
Telephone
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
