FR1447735A - Cathode for electron tubes - Google Patents

Cathode for electron tubes

Info

Publication number
FR1447735A
FR1447735A FR32413A FR32413A FR1447735A FR 1447735 A FR1447735 A FR 1447735A FR 32413 A FR32413 A FR 32413A FR 32413 A FR32413 A FR 32413A FR 1447735 A FR1447735 A FR 1447735A
Authority
FR
France
Prior art keywords
cathode
electron tubes
tubes
electron
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
FR32413A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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
Priority claimed from DE1964S0050218 external-priority patent/DE1914715U/en
Application filed by Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Priority to FR32413A priority Critical patent/FR1447735A/en
Application granted granted Critical
Publication of FR1447735A publication Critical patent/FR1447735A/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
FR32413A 1964-09-24 1965-09-23 Cathode for electron tubes Expired FR1447735A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR32413A FR1447735A (en) 1964-09-24 1965-09-23 Cathode for electron tubes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1964S0050218 DE1914715U (en) 1964-09-24 1964-09-24 CATHODE WITH FRONT EMISSION AREA.
FR32413A FR1447735A (en) 1964-09-24 1965-09-23 Cathode for electron tubes

Publications (1)

Publication Number Publication Date
FR1447735A true FR1447735A (en) 1966-07-29

Family

ID=25995311

Family Applications (1)

Application Number Title Priority Date Filing Date
FR32413A Expired FR1447735A (en) 1964-09-24 1965-09-23 Cathode for electron tubes

Country Status (1)

Country Link
FR (1) FR1447735A (en)

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