An X-ray of Historic Audion vacuum tube
An X-ray of Historic Audion vacuum tube. This tube made in the 1920's was the first circuit used to amplify radio and television signals. This tube proved critical for the development of television. The Audion vacuum tube was invented in 1906 by Lee de Forest
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- TVtube1FC.jpg
- Copyright
- Ted Kinsman / Science Source Inc.
- Image Size
- 2700x4537 / 3.4MB
- Contained in galleries
- X-Rays
