Replace original d.c. track circuit signal apparatus of London subways with a.c. equipment of condenser-fed type. (See also Elec. Traction vol. 27, no. 11, Nov. 1931 pp. 543-544, 2 figs; Traction Shop and Roadway, vol. 4, no. 11, Nov. 1931, pp. 331-333, 4 figs.)


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    Title :

    Modernize London subway signal system


    Additional title:

    Elec. Ry. Jl


    Contributors:

    Published in:

    Publication date :

    1931


    Size :

    2 pages


    Remarks:

    3 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


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