DocumentCode
1405402
Title
Telephone toll cable extended
Author
Calderwood, E. M. ; Smith, D. F.
Author_Institution
Pac. Tel. & Tel. Co., San Francisco
Volume
50
Issue
9
fYear
1931
Firstpage
736
Lastpage
741
Abstract
Completion of the longest telephone toll cable west of the Mississippi gives San Francisco and Los Angeles a 275-circuit all-cable communication channel, the equivalent of three of the latest-type 60-wire open leads completely equipped with carrier systems. The project cost ten million dollars, involved some heavy construction problems, and provided an important step toward an ultimate all-cable transcontinental system.
Keywords
Cable shielding; Coils; Communication cables; Loading; Power cables; Repeaters; Wires;
fLanguage
English
Journal_Title
Electrical Engineering
Publisher
ieee
ISSN
0095-9197
Type
jour
DOI
10.1109/EE.1931.6429423
Filename
6429423
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