| 21. | Or can one build a 50 MeV x-ray tube . .?
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| 22. | But the cathode ray tube ( CRT ) is finally showing its age.
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| 23. | This is a common artifact in sets that use a cathode ray tube.
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| 24. | Matsushita Electronics is a Japanese maker of semiconductors and cathode-ray tubes.
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| 25. | The zero point would be displayed on the cathode ray tube.
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| 26. | Some older cathode ray tube television sets have a built-in transmitter.
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| 27. | X-ray tubes similar to this are still in use in 2012.
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| 28. | For example, there is no assigned letter code for cathode-ray tubes.
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| 29. | The challenge of shrinking the bulky cathode-ray tube has vexed scientists for decades.
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| 30. | The lead in the cathode ray tube of a monitor is especially dangerous.
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