BSTJ 1: 1. July 1922: Philadelphia-Pittsburgh Section of the New York-Chicago Cable. (Pilliod, James J.) (1922)
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NEW YORK-CHICAGO CABLE 63 … 64 BELL SYSTEM TECHNICAL JOURNAL requirements for circuits are very heavy and in addition, as is well-known, the topography of the country is such that the through routeswhich can economically be used for pole lines are limited. At present,these few routes are fully occupied by the pole lines of…
Cable · Circuits · Circuit · Repeaters · Repeater · Coils · Loading · Telephone · Pittsburgh · Aerial · Loading coils · Telephone circuits · Technical journal · Telephone repeaters · System technical · Pole lines · Loading coil · Aerial wire · Bell system · Test boards
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