About: http://webisa.webdatacommons.org/45926786

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	and when the recorder plays a 2400 Hz tone, the output of the gate was a signal
http://www.w3.org/ns/prov#wasQuotedFrom	comcast.net