1953

Philco develops first high-frequency transistor

Collection of hourglasses representing amateur radio history

In 1953, Philco Corporation developed the first high-frequency transistor, known as the surface-barrier transistor. This innovation was a significant advancement in transistor technology, as it allowed for operation at much higher frequencies than previously possible. The surface-barrier transistor, designed by Herbert Mataré and Heinrich Welker, utilized a thin, precise barrier layer to achieve higher speed and better performance. This breakthrough had a profound impact on the electronics industry, enabling the development of faster and more efficient radios, amplifiers, and other communication devices. For amateur radio operators, this meant improved performance and reliability of their equipment, further enhancing the capabilities and reach of amateur radio communication.

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