Assertion: detector's battery | /r/CapableOf | create a clicksound
Facets:
value: in a telegraph sounder
type: LOCATION
value: in earphones
type: LOCATION
Source sentences:
text: The coherer's electrodes were also attached to a DC circuit powered by a battery that created a "click" sound in earphones or a telegraph sounder, or a mark on a paper tape, to record the signal.