Post Office has built standard unit automatic exchange for 100 lines in vehicle which can be towed to rural sites for temporary service; experimental mobile exchange is self-contained; construction of trailer, transport and telephone facilities, alternative arrangements for charging batteries from gasoline engine charging set or from public a-c supply, described.


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    Title :

    Mobile automatic telephone exchange


    Additional title:

    Post Office Elec Engrs J


    Contributors:


    Publication date :

    1939


    Size :

    6 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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