Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 100
omson patented a duplex method of operating 82 MODERN LAND AND SUBMARINE TELEGRAPHY 73 submarine cable; this, howewr, was not immediately applied tocommerc-ial operation. The Stearns duplex method, although suc-cessful on land lines, was not practicable for cable work because withresistance coils… … -< mmm Fig. 54. Wiring Diagram for Duplex Operation of Submarine Cables obtainable, but it was not until ]\Iuirhead produced an artificial linehaving resistance and capacity uniformly distributed that the prob-lem was so satisfactorily solved as to make duplex cable operationcommercially…
Electrical engineering
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