FR1075330A - Improvements to emissive cathodes for electron tubes - Google Patents

Improvements to emissive cathodes for electron tubes

Info

Publication number
FR1075330A
FR1075330A FR1075330DA FR1075330A FR 1075330 A FR1075330 A FR 1075330A FR 1075330D A FR1075330D A FR 1075330DA FR 1075330 A FR1075330 A FR 1075330A
Authority
FR
France
Prior art keywords
electron tubes
emissive cathodes
emissive
cathodes
tubes
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil 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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Application granted granted Critical
Publication of FR1075330A publication Critical patent/FR1075330A/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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
FR1075330D 1953-02-05 1953-02-05 Improvements to emissive cathodes for electron tubes Expired FR1075330A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1075330T 1953-02-05

Publications (1)

Publication Number Publication Date
FR1075330A true FR1075330A (en) 1954-10-14

Family

ID=9607064

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1075330D Expired FR1075330A (en) 1953-02-05 1953-02-05 Improvements to emissive cathodes for electron tubes

Country Status (1)

Country Link
FR (1) FR1075330A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073635B (en) * 1960-01-21 Egyesült Izzolämpa es Villamossägi Reszvenytärsasäg, Budapest Indirectly heated supply cathode and method for making the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073635B (en) * 1960-01-21 Egyesült Izzolämpa es Villamossägi Reszvenytärsasäg, Budapest Indirectly heated supply cathode and method for making the same

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