About: http://webisa.webdatacommons.org/389454227

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	Below is an extract from an old RCA datasheet for their 6021 medium m?? double triode tube that gives an idea of the supreme engineering effort that went into ensuring the reliability and consistency of subminiature tubes:
http://www.w3.org/ns/prov#wasQuotedFrom	effectrode.com