Category:Microphones in the 1910s

Media in category "Microphones in the 1910s"

The following 10 files are in this category, out of 10 total.

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  111-SC-23348 - DPLA - f2dd80e690d6ec5ca302993df4d24618.jpg 8,427 × 5,658; 20.57 MB
  
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  1916 Charles Logwood at radio station 2XG.jpg 315 × 432; 32 KB
  
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  1919 Automatic Enunciator quiet.JPG 1,157 × 845; 246 KB
  
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  A Telephone Operator.png 1,024 × 1,482; 923 KB
  
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  Carbon button microphone 1916.png 745 × 603; 102 KB
  
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  Carbon button microphone cutaway.png 727 × 874; 134 KB
  
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  First US Navy radiotelephone.jpg 1,356 × 2,114; 329 KB
  
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  First vacuum tube AM radio transmitter.jpg 448 × 360; 90 KB
  
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  Mariette Mazarin 1908 radio broadcast.png 606 × 605; 119 KB
  
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  Round radiotelephone set.jpg 1,728 × 1,128; 268 KB