FR826135A - Electric discharge tube - Google Patents

Electric discharge tube

Info

Publication number
FR826135A
FR826135A FR826135DA FR826135A FR 826135 A FR826135 A FR 826135A FR 826135D A FR826135D A FR 826135DA FR 826135 A FR826135 A FR 826135A
Authority
FR
France
Prior art keywords
electric discharge
discharge tube
tube
electric
discharge
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 FR826135A publication Critical patent/FR826135A/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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
FR826135D 1936-09-01 1937-08-31 Electric discharge tube Expired FR826135A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL485439X 1936-09-01

Publications (1)

Publication Number Publication Date
FR826135A true FR826135A (en) 1938-03-23

Family

ID=19786625

Family Applications (1)

Application Number Title Priority Date Filing Date
FR826135D Expired FR826135A (en) 1936-09-01 1937-08-31 Electric discharge tube

Country Status (2)

Country Link
FR (1) FR826135A (en)
GB (1) GB485439A (en)

Also Published As

Publication number Publication date
GB485439A (en) 1938-05-19

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