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FR624263A - Cathode chaude pour valve thermionique ou lampe de t. s. f. - Google Patents

Cathode chaude pour valve thermionique ou lampe de t. s. f.

Info

Publication number
FR624263A
FR624263A FR624263DA FR624263A FR 624263 A FR624263 A FR 624263A FR 624263D A FR624263D A FR 624263DA FR 624263 A FR624263 A FR 624263A
Authority
FR
France
Prior art keywords
lamp
hot cathode
thermionic valve
thermionic
valve
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)
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.)
FR DE LAMPES A INCANDESCENCE L
Original Assignee
FR DE LAMPES A INCANDESCENCE L
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 FR DE LAMPES A INCANDESCENCE L filed Critical FR DE LAMPES A INCANDESCENCE L
Application granted granted Critical
Publication of FR624263A publication Critical patent/FR624263A/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
    • H01J1/15—Cathodes heated directly by an electric current
FR624263D 1926-03-02 1926-03-02 Cathode chaude pour valve thermionique ou lampe de t. s. f. Expired FR624263A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR624263T 1926-03-02

Publications (1)

Publication Number Publication Date
FR624263A true FR624263A (fr) 1927-07-12

Family

ID=8986970

Family Applications (1)

Application Number Title Priority Date Filing Date
FR624263D Expired FR624263A (fr) 1926-03-02 1926-03-02 Cathode chaude pour valve thermionique ou lampe de t. s. f.

Country Status (3)

Country Link
BE (1) BE340155A (fr)
FR (1) FR624263A (fr)
GB (1) GB267078A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE759629C (de) * 1940-01-20 1953-08-10 Lorenz A G C Direkt geheizte Gluehkathode mit einer Wendel aus thoriertem Wolframdraht

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE759629C (de) * 1940-01-20 1953-08-10 Lorenz A G C Direkt geheizte Gluehkathode mit einer Wendel aus thoriertem Wolframdraht

Also Published As

Publication number Publication date
GB267078A (en) 1927-11-07
BE340155A (fr)

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