Assertion: projector's size | /r/HasProperty | 25-30 kv
Facets:
value: typically
type: DEGREE
Source sentences:
text: Using a 3, 4 or 5 inch monochrome CRT driven at a very high accelerating voltage for the size (typically 25-30 kV), the tube produced an extremely bright picture which was projected via a Schmidt lens and mirror assembly onto a semi translucent screen of typically 22.5 to 30 inches diagonal in size.