Assertion: radio | /r/HasProperty | forbidding high-tech device
Facets:
value: with controls
type: OTHER
value: at the beginning of the 1920s
type: TEMPORAL
value: with many cryptic knobs
type: OTHER
Source sentences:
text: At the beginning of the 1920s the radio receiver was a forbidding high-tech device, with many cryptic knobs and controls requiring technical skill to operate, housed in an unattractive black metal box, with a tinny-sounding horn loudspeaker.