About: http://webisa.webdatacommons.org/235516741

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	A negative temperature coefficient device, such as a thermistor, was sometimes incorporated in the equipment heater supply to compensate.
http://www.w3.org/ns/prov#wasQuotedFrom	reference.com