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      Scientific American July 17, 1915

      A Radio Generator for Amateurs

      Instructions for Fitting Up a Powerful and Efficient Source of Current

      • By Frederick E. Ward on July 17, 1915

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      More in the July 17, 1915 issue of Scientific American
      • Facts about Thunderstorms
      • Problems of Geographic Influence
      • Gun-Primers and Detonators
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