FR826697A - Incandescent cathodes for cathode ray oscillographs - Google Patents

Incandescent cathodes for cathode ray oscillographs

Info

Publication number
FR826697A
FR826697A FR826697DA FR826697A FR 826697 A FR826697 A FR 826697A FR 826697D A FR826697D A FR 826697DA FR 826697 A FR826697 A FR 826697A
Authority
FR
France
Prior art keywords
cathode ray
ray oscillographs
incandescent cathodes
cathodes
incandescent
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)
Inventor
Vladislas Zeitline
Apollinaire Zeitline
Vladimir Kliatchko
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Application granted granted Critical
Publication of FR826697A publication Critical patent/FR826697A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/484—Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission
FR826697D 1936-12-22 1936-12-22 Incandescent cathodes for cathode ray oscillographs Expired FR826697A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR826697T 1936-12-22

Publications (1)

Publication Number Publication Date
FR826697A true FR826697A (en) 1938-04-06

Family

ID=9282987

Family Applications (1)

Application Number Title Priority Date Filing Date
FR826697D Expired FR826697A (en) 1936-12-22 1936-12-22 Incandescent cathodes for cathode ray oscillographs

Country Status (2)

Country Link
FR (1) FR826697A (en)
GB (1) GB485548A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527127A (en) * 1948-12-24 1950-10-24 Bell Telephone Labor Inc Electronic discharge device

Also Published As

Publication number Publication date
GB485548A (en) 1938-05-20

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