About: http://webisa.webdatacommons.org/243221422

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	In a device such as a radio receiver, several amplifiers boost a weak input signal until it is powerful enough to drive a speaker.
http://www.w3.org/ns/prov#wasQuotedFrom	infoplease.com