Assertion: cathode ray tube's electron gun | /r/CapableOf | produce a beam of electrons
Facets:
Source sentences:
text: An electron gun at the rear of the tube produces a beam of electrons which is directed towards the front of the tube (screen).
text: The electron gun generates the beam of electrons; these electron beam consists of several electrons moving towards phosphor screen.
text: The electron gun generates the beam of an electron when the voltage is applied to it.