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Cathode Ray Tube

A cathode ray tube is a vacuum tube containing one or more electron guns, which produce a beam of electrons, and a phosphorescent screen used to view images. Electron beams are deflected onto the screen to produce the image of a waveform - this is called an oscilloscope. Radar technicians then study the waveform displayed on the oscilloscope screen to determine the location of an aircraft. The same kind of technology, though much more detailed and complex, is used to create television screens.

© 2016 The Secrets of Radar Museum

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Disclaimer: The audio files available on this virtual exhibit are the result of a long term oral history interview project conducted by the Secrets of Radar Museum. Sections of these interviews have been compiled here to make them accessible to the general public. Interviews were conducted by different museum staff at different times using different recording devices. As a result, some of the audio clips have background noise or other imperfections. The Secrets of Radar Museum has worked to ensure that the recordings shared here have been refined to increase sound quality and reduce these imperfections, but some recordings will still have flaws due to the limitations of the original audio file. The Secrets of Radar Museum appreciates your understanding in this matter. Please contact us for more information.

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