David Edward Hughes (16 May 1831 – 22 January 1900), was a Welsh scientist and musician. Hughes was co-inventor of the microphone and teleprinter, discoverer of spark-gap radio, inventor of crystal radio. He also independently invented a semiconductor rectifier diode, which he used to invent the crystal radio detector for the world's first radio transmitter and receiver. He was a harpist, and a professor of music.
Read more about David Edward Hughes: Biography, Music, Printing Telegraph, Invention of Radio, Awards, Patents
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