BSTJ 1: 1. July 1922: Philadelphia-Pittsburgh Section of the New York-Chicago Cable. (Pilliod, James J.) (1922)
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ge combinedwith improved loading coils, the vacuum tube telephone repeater (6 BELL SYSTEM TECHNICAL JOURNAL and other methods and apparatus which are the result of recentdevelopments. Lead-covered aerial cable supported on wooden polelines is to be used in general on all of the routes except in the… … Fig. 5—General View of Pole Line Carrying Aerial Cable No. 10 A. W. G. as in the older cables, has contributed to make aerialconstruction rather than underground conduit the more economicalin many sections, as one cable will provide for a much greater numberof circuits and consequently fewer cables…
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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