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Updated: May 20, 2025
In practice the tapping was done automatically by a tapper which came into action the moment the coherer became conductive. He suggested that such discharges could possibly be used for signaling over long distances. Old timers may remember that about 50 years ago Russian amateurs used to send out a QSL card with a drawing of Popov and a caption which claimed that he was 'the inventor of radio'.
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