About: http://webisa.webdatacommons.org/371443858

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	With filament types of tubes, the filaments of all the tubes are connected together in the A supply, and so it is difficult to apply the voltage distribution system outlined herein.
http://www.w3.org/ns/prov#wasQuotedFrom	radiomuseum.org