Books
ZWLE's Technical Bulletin
Carbonization of cathodes-article from ZE Lamina (1975)
Automatic manufacturing of sending tubes-article from ZE Lamina (1975)
Gases in CRT tubes- article from ZELOS (1973)
Technical prescription of thyratron TG3,2/1,5
Reliability of the ZM1200 Indicator Tube, Electronic Applications, 1969.
Microphonic effect in electron tubes
New cathode types review - article from ZWLE
Technical prescription of prepare emission paste for TVC (zip file ca. 16M)
