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Application filed by Siemens AgfiledCriticalSiemens Ag
Publication of CH320913ApublicationCriticalpatent/CH320913A/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
H01J1/28—Dispenser-type cathodes, e.g. L-cathode
CH320913D1952-04-101953-04-07Kathode für elektrische Entladungsgefässe
CH320913A
(de)