Assertion: zenith | /r/CapableOf | keep circuit boards
Facets:
value: out of their televisions
type: LOCATION
Source sentences:
text: Zenith kept circuit boards out of their televisions until the Chromacolor line of the early 1970s, and even then used them only with solid state components, mounting the four tubes used in the Chromacolor "4 tube hybrid" on the steel chassis.