Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. system components
7. electrical system components
8. electron tubes
9. vacuum tubes
10. cathode ray tubes

Narrower term/s

• vidicons

Anotations

Scope note:

Vacuum tubes for television cameras, using a photosensitive surface located in the image plane, of the television camera object lens; having a storage surface on which electronic charge is accumulated, and a scanning electron beam that discharges the target to produce the amplitude modulated video signal.