cathode-ray tube definition

  • noun:
    • vacuum pressure tube for which a hot cathode gives off electrons which can be accelerated as a beam through a comparatively high-voltage anode, more focused or deflected electrostatically or electromagnetically, and allowed to fall on a phosphorescent display.
    • a vacuum tube which electrons from a heated cathode are concentrated and deflected onto a phosphorescent display; utilized in tv sets etc
    • vacuum pressure tube by which a hot cathode gives off a beam of electrons that pass through increased voltage anode and are focused or deflected prior to striking a phosphorescent display screen
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