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Lee de Forest, American electrical engineer and inventor, 1961

Lee de Forest, American electrical engineer and inventor, 1961
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Largest available format 2534 × 3504 px 3 MB
Dimension [pixels] Dimension in 300dpi [mm] File size [MB] Online Purchase
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IMAGE number
UIS5092792
Image title
Lee de Forest, American electrical engineer and inventor, 1961
Auto-translated text View Original Source
Artist
Unknown
Location
Science Museum, London, UK
Medium
engraving
Image description

Lee de Forest, American electrical engineer and inventor, 1961. Etching of de Forest (1873-1961) who was principally known for his invention of the Audion, in 1906. This was a vacuum tube device that could take weak telegraph or radio signals and amplify them. Soon audions were being used in radios and and were installed to boost voice signals as they crossed the US continent. In 1921, De Forest also contributed to the film industry when he used electricity to improve sound recordings. This achievement led directly to the creation of motion picture with sound. Published by the International Telecommunication Union. ©SSPL/Science Museum

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SSPL/UIG / Bridgeman Images
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portrait

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