FR1303771A - Semi-indirect heating cathode for electron tubes - Google Patents

Semi-indirect heating cathode for electron tubes

Info

Publication number
FR1303771A
FR1303771A FR875895A FR875895A FR1303771A FR 1303771 A FR1303771 A FR 1303771A FR 875895 A FR875895 A FR 875895A FR 875895 A FR875895 A FR 875895A FR 1303771 A FR1303771 A FR 1303771A
Authority
FR
France
Prior art keywords
semi
indirect heating
electron tubes
heating cathode
cathode
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
FR875895A
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 DES71134A external-priority patent/DE1146985B/en
Application filed by Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Priority to FR875895A priority Critical patent/FR1303771A/en
Application granted granted Critical
Publication of FR1303771A publication Critical patent/FR1303771A/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
    • H01J1/22—Heaters
FR875895A 1960-11-04 1961-10-13 Semi-indirect heating cathode for electron tubes Expired FR1303771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR875895A FR1303771A (en) 1960-11-04 1961-10-13 Semi-indirect heating cathode for electron tubes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES71134A DE1146985B (en) 1960-11-04 1960-11-04 Semi-indirectly heated cathode for electron tubes
FR875895A FR1303771A (en) 1960-11-04 1961-10-13 Semi-indirect heating cathode for electron tubes

Publications (1)

Publication Number Publication Date
FR1303771A true FR1303771A (en) 1962-09-14

Family

ID=25996257

Family Applications (1)

Application Number Title Priority Date Filing Date
FR875895A Expired FR1303771A (en) 1960-11-04 1961-10-13 Semi-indirect heating cathode for electron tubes

Country Status (1)

Country Link
FR (1) FR1303771A (en)

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