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Siteseen: American Historama: 1920's Radio
Read about the history and impact of the Radio in the 1920s in this article with numerous interesting facts.
National High Magnetic Field Laboratory
Magnet Academy: Lee De Forest
American inventor Lee De Forest was a pioneer of radio and motion pictures. He received more than 300 patents over the course of his lifetime, the most important of which was for a three-electrode vacuum tube, or triode, that he called...