FR872829A - Electric discharge tube - Google Patents

Electric discharge tube

Info

Publication number
FR872829A
FR872829A FR872829DA FR872829A FR 872829 A FR872829 A FR 872829A FR 872829D A FR872829D A FR 872829DA FR 872829 A FR872829 A FR 872829A
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 FR872829A publication Critical patent/FR872829A/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
    • H01J1/26—Supports for the emissive material
FR872829D 1940-06-05 1941-06-03 Electric discharge tube Expired FR872829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL50640X 1940-06-05

Publications (1)

Publication Number Publication Date
FR872829A true FR872829A (en) 1942-06-19

Family

ID=19756154

Family Applications (1)

Application Number Title Priority Date Filing Date
FR872829D Expired FR872829A (en) 1940-06-05 1941-06-03 Electric discharge tube

Country Status (5)

Country Link
BE (1) BE441617A (en)
CH (1) CH225248A (en)
FR (1) FR872829A (en)
GB (1) GB597470A (en)
NL (1) NL54119C (en)

Also Published As

Publication number Publication date
GB597470A (en) 1948-01-27
BE441617A (en)
NL54119C (en)
CH225248A (en) 1943-01-15

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