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Application filed by Philips NvfiledCriticalPhilips Nv
Publication of CH250513ApublicationCriticalpatent/CH250513A/de
H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
H01J1/02—Main electrodes
H01J1/13—Solid thermionic cathodes
H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
H01J1/26—Supports for the emissive material
CH250513D1944-06-161946-05-07Elektrische Entladungsröhre mit Manschettenkathode.
CH250513A
(de)