About: http://webisa.webdatacommons.org/24478642

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	Tube 2 has an electronic circuit element 5, e.g., as a chip, and other elements shown in said U.S. Pat. No. 4,992,794 but not shown in FIG. 3, viz., connected as by wire leads to windings of a ferrite core and to a capacitor.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com