FR873205A - Cathode for electric discharge tube - Google Patents

Cathode for electric discharge tube

Info

Publication number
FR873205A
FR873205A FR873205DA FR873205A FR 873205 A FR873205 A FR 873205A FR 873205D A FR873205D A FR 873205DA FR 873205 A FR873205 A FR 873205A
Authority
FR
France
Prior art keywords
cathode
electric discharge
discharge tube
tube
electric
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
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR873205A publication Critical patent/FR873205A/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
FR873205D 1940-06-05 1941-06-18 Cathode for electric discharge tube Expired FR873205A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL240057X 1940-06-05

Publications (1)

Publication Number Publication Date
FR873205A true FR873205A (en) 1942-07-02

Family

ID=19780488

Family Applications (1)

Application Number Title Priority Date Filing Date
FR873205D Expired FR873205A (en) 1940-06-05 1941-06-18 Cathode for electric discharge tube

Country Status (2)

Country Link
CH (1) CH240057A (en)
FR (1) FR873205A (en)

Also Published As

Publication number Publication date
CH240057A (en) 1945-11-30

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