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  4. Components (hierarchy name)
  5. components (objects parts)
  6. [components by specific context]
  7. system components
  8. electrical system components
  9. electron tubes
  10. vacuum tubes
  11. cathode ray tubes
  12. television camera tubes
  13. vidicons
Scope note
Small television camera tubes of a particular kind, in which the image is formed on a transparent electrode coated with photoconductive material, the video signal being obtained from the variation in the current flowing to or from this as it is scanned by a beam of (usually low-speed) electrons.
Accepted term: 20-May-2024