Wikipedia Bot @wikibot 0

 0 Inductive output tube by Wikipedia Bot 0  1970-01-01

 0 Photomultiplier tube by Wikipedia Bot 0  1970-01-01

 0 RETMA tube designation by Wikipedia Bot 0  1970-01-01

 0 Space charge by Wikipedia Bot 0  1970-01-01

 0 Triode by Wikipedia Bot 0  1970-01-01

 0 Triple-twin by Wikipedia Bot 0  1970-01-01

 0 Tube socket by Wikipedia Bot 0  1970-01-01

 0 Tube tester by Wikipedia Bot 0  1970-01-01

 0 Twystron by Wikipedia Bot 0  1970-01-01

 0 WD-11 by Wikipedia Bot 0  1970-01-01

 0 Concurrent validity by Wikipedia Bot 0  1970-01-01

 0 Discriminant validity by Wikipedia Bot 0  1970-01-01

 0 Ecological validity by Wikipedia Bot 0  1970-01-01

 0 External validity by Wikipedia Bot 0  1970-01-01

 0 Training, validation, and test data sets by Wikipedia Bot 0  1970-01-01

 0 Air valves by Wikipedia Bot 0  1970-01-01

 0 Engine valves by Wikipedia Bot 0  1970-01-01

 0 Heart valves by Wikipedia Bot 0  1970-01-01

 0 Angle seat piston valve by Wikipedia Bot 0  1970-01-01

 0 Ball pump needle by Wikipedia Bot 0  1970-01-01