GB850814A - Improvements in or relating to electron discharge tubes - Google Patents

Improvements in or relating to electron discharge tubes

Info

Publication number
GB850814A
GB850814A GB2736757A GB2736757A GB850814A GB 850814 A GB850814 A GB 850814A GB 2736757 A GB2736757 A GB 2736757A GB 2736757 A GB2736757 A GB 2736757A GB 850814 A GB850814 A GB 850814A
Authority
GB
United Kingdom
Prior art keywords
relating
discharge tubes
electron discharge
magnesium silicide
nickel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2736757A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefunken AG
Original Assignee
Telefunken AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefunken AG filed Critical Telefunken AG
Publication of GB850814A publication Critical patent/GB850814A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • 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
    • H01J1/14—Solid thermionic cathodes characterised by the material

Abstract

850,814. Cathode materials and processing. TELEFUNKEN G.m.b.H. Aug. 30, 1957 [Dec. 20, 1956], No. 27367/57. Class 39(1). A cathode comprises a coating of an emissive oxide on a metal carrier, the latter containing magnesium silicide as an activator. The carrier may be nickel, and the magnesium silicide may be added during a melting stage, or mixed in powder form with powdered nickel and subsequently sintered.
GB2736757A 1956-12-20 1957-08-30 Improvements in or relating to electron discharge tubes Expired GB850814A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET13017A DE1143934B (en) 1956-12-20 1956-12-20 Oxide cathode for electrical discharge tubes

Publications (1)

Publication Number Publication Date
GB850814A true GB850814A (en) 1960-10-05

Family

ID=7547203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2736757A Expired GB850814A (en) 1956-12-20 1957-08-30 Improvements in or relating to electron discharge tubes

Country Status (2)

Country Link
DE (1) DE1143934B (en)
GB (1) GB850814A (en)

Also Published As

Publication number Publication date
DE1143934B (en) 1963-02-21

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