David Edward Hughes Carbon Microphone
Sept. 7, 2024
https://www.alamy.com/licenses-and-pricing/?v=1 Acoustics: a carbon microphone invented by D.E. Hughes. Wood engraving by Baud after Broux. | Wellcome Collection David Edward Hughes, the father of the microphone David Edward Hughes - Wikipedia David Edward Hughes, the father of the microphone Hughes microphone detector, 1865-1875 | Science Museum Group Collection | David Edward Hughes Carbon Microphone
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