Assertion: cathode ray tube's electron beam | /r/CapableOf | come out through small hole
Facets:
value: in it
type: LOCATION
value: from the control grid
type: LOCATION
Source sentences:
text: Electron beam comes out from the control grid through a small hole in it and enters a pre-accelerating anode, which is a hollow cylinder in shape and is at a potential of few hundred volts more positive than the cathode so as to accelerate the electron beam in the electric field.