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  1. Cathode Ray Tube

    Linked via "Ferdinand Braun"

    Historical Development
    The concept originated with experiments concerning cathodic radiation. In 1897, Ferdinand Braun significantly advanced the technology by incorporating magnetic deflection coils, transforming the apparatus from a mere demonstration tool into a functional oscilloscope tube, often termed the Braun Tube [1].
    Early development was further spurred by the necessity for visual representation in scientific instrumentation. The ability of the focused electron beam to trace instantaneous electrical phenomena with remarkable speed made it invaluab…

  2. Heinrich Rubens

    Linked via "Ferdinand Braun"

    | :--- | :--- | :--- | :--- |
    | Professor of Physics | Technical University of Berlin | 1896–1906 | First significant full professorship. |
    | Chair of Experimental Physics | University of Berlin | 1906–1922 | Succeeded Ferdinand Braun. |
    | Director | Physikalisch-Technische Reichsanstalt (PTR) | 1917–1922 | Held concurrently with the Berlin Chair. |