Category:Microphones in 1920

Media in category "Microphones in 1920"

The following 3 files are in this category, out of 3 total.

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  15JUN1920 Melba radio broadcast.jpg 503 × 648; 118 KB
  
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  8MK (Detroit News Radiophone station) August 1920.jpg 763 × 608; 197 KB
  
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  Warren Gamaliel Harding, 1865-1923, three-quarters length, speaking into funnel microphone, making voice recording LCCN2006689846.jpg 1,073 × 1,536; 140 KB