FR970342A - Tube à décharge muni d'une cathode à chauffage indirect - Google Patents

Tube à décharge muni d'une cathode à chauffage indirect

Info

Publication number
FR970342A
FR970342A FR970342DA FR970342A FR 970342 A FR970342 A FR 970342A FR 970342D A FR970342D A FR 970342DA FR 970342 A FR970342 A FR 970342A
Authority
FR
France
Prior art keywords
discharge tube
indirectly heated
heated cathode
cathode
indirectly
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
English (en)
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 FR970342A publication Critical patent/FR970342A/fr
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
FR970342D 1947-08-15 1948-08-13 Tube à décharge muni d'une cathode à chauffage indirect Expired FR970342A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL269933X 1947-08-15

Publications (1)

Publication Number Publication Date
FR970342A true FR970342A (fr) 1951-01-03

Family

ID=19781880

Family Applications (1)

Application Number Title Priority Date Filing Date
FR970342D Expired FR970342A (fr) 1947-08-15 1948-08-13 Tube à décharge muni d'une cathode à chauffage indirect

Country Status (6)

Country Link
US (1) US2532838A (instruction)
BE (1) BE484368A (instruction)
CH (1) CH269933A (instruction)
DE (1) DE809445C (instruction)
FR (1) FR970342A (instruction)
GB (1) GB653707A (instruction)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1312580A (fr) * 1961-11-09 1962-12-21 Csf Perfectionnements aux cathodes de dimensions millimétriques pour tubes électroniques
FR1455956A (fr) * 1965-07-20 1966-05-20 Thomson Houston Comp Francaise Perfectionnements aux cathodes à chauffage direct

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2212827A (en) * 1937-12-29 1940-08-27 Fides Gmbh Hot cathode for high power
NL52447C (instruction) * 1938-02-04

Also Published As

Publication number Publication date
BE484368A (instruction)
GB653707A (en) 1951-05-23
US2532838A (en) 1950-12-05
CH269933A (de) 1950-07-31
DE809445C (de) 1951-07-30

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