Assertion: cathode ray tube | /r/HasProperty | a heart of oscilloscope
Facets:
value: in suitably modified and refined form
type: OTHER
Source sentences:
text: Cathode Ray Tube (CRT) is also a Heart of oscilloscope.
text: Not only was the cathode ray tube a useful research tool by itself, but in suitably modified and refined form, it was the heart of the oscilloscope (first known as the cathode ray oscilloscope), the television set and displays for computers and video equipment.