Telephone switchboard

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A telephone switchboard was a device used to connect circuits of telephones to establish telephone calls between users or other switchboards, throughout the 20th century. The switchboard was an essential component of a manual telephone exchange, and was operated by switchboard operators who used electrical cords or switches to establish the connections.

The electromechanical automatic telephone exchange, invented by Almon Strowger in 1888, gradually replaced manual switchboards in central telephone exchanges around the world. In 1919, the Bell System in Canada also adopted automatic switching as its future technology, after years of reliance on manual systems.
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  • Fernsprecher Klappenschrank ZB 13

    Fernsprecher Klappenschrank ZB 13

    Bis zum Aufbau der...

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    Image: Volkskunde- und Freilichtmuseum Roscheider Hof - CC0

  • Klappenschrank OB 52 (V10)

    Klappenschrank OB 52 (V10)

    Der 10-zeilige Klappenschrank...

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    Image: Industriemuseum Region Teltow - CC BY-NC-SA

  • RFT Klappenschrank OB II/10

    RFT Klappenschrank OB II/10

    Der Klappenschrank OB II/10...

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    Image: Industriemuseum Region Teltow - CC BY-NC-SA

  • Klappenschrank ZB 13

    Klappenschrank ZB 13

    Bis zum Aufbau der...

    Object information
    Image: Industriemuseum Region Teltow - CC BY-NC-SA

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