Improvements due to underground cables replacing overhead lines; application of Pupin coils, and of vacuum-tube amplifiers, two-wire and 4-wire conections; inductive interference of high-tension lines and their reduction by means of copper wire.


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    Title :

    Long distance telephony


    Additional title:

    Fernsprechen im Fernverkehr


    Contributors:
    Rihl, W. (author)

    Published in:

    Publication date :

    1925


    Size :

    10 pages


    Remarks:

    14 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    German


    Keywords :


    RADIO TELEPHONY

    COLPITTS, E H | SAE Technical Papers | 1919


    Radio telephony

    Colpitts, E.H. | Engineering Index Backfile | 1919


    Fleet telephony

    Fiske, Bradley A. | Engineering Index Backfile | 1907


    Cable telephony

    Erikson, P.E. | Engineering Index Backfile | 1932


    IP telephony Students tracked with IP telephony and XML

    British Library Online Contents | 2004