Electron tubes

An electron tube, such as a fluorescent display tube, is disclosed. The electron tube includes plural cathode filaments, each of which has the same diameter and a different length. In order to adjust the resistance of each filament, the plural filaments are not serially connected, but effective leng...

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Bibliographic Details
Main Authors TAKAYAMA KATSUMI, YONEZAWA YOSHIHISA, NOHARA YASUHIRO
Format Patent
LanguageEnglish
Published 20.01.2005
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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