FR1236862A - Indirect heating cathode for electron tubes - Google Patents

Indirect heating cathode for electron tubes

Info

Publication number
FR1236862A
FR1236862A FR806311A FR806311A FR1236862A FR 1236862 A FR1236862 A FR 1236862A FR 806311 A FR806311 A FR 806311A FR 806311 A FR806311 A FR 806311A FR 1236862 A FR1236862 A FR 1236862A
Authority
FR
France
Prior art keywords
indirect heating
electron tubes
heating cathode
cathode
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
FR806311A
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 Edison Swan Ltd
Original Assignee
Siemens Edison Swan Ltd
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 Siemens Edison Swan Ltd filed Critical Siemens Edison Swan Ltd
Application granted granted Critical
Publication of FR1236862A publication Critical patent/FR1236862A/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
    • H01J1/24—Insulating layer or body located between heater and emissive material
FR806311A 1958-09-30 1959-09-29 Indirect heating cathode for electron tubes Expired FR1236862A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3120358A GB867021A (en) 1958-09-30 1958-09-30 Improvements relating to indirectly heated cathodes for electron discharge devices

Publications (1)

Publication Number Publication Date
FR1236862A true FR1236862A (en) 1960-07-22

Family

ID=10319554

Family Applications (1)

Application Number Title Priority Date Filing Date
FR806311A Expired FR1236862A (en) 1958-09-30 1959-09-29 Indirect heating cathode for electron tubes

Country Status (2)

Country Link
FR (1) FR1236862A (en)
GB (1) GB867021A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1184424B (en) * 1962-10-15 1964-12-31 Philips Nv Indirectly heated cathode for an electrical discharge tube and process for its manufacture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3740606A (en) * 1971-09-01 1973-06-19 Gte Sylvania Inc Vibration suppressor in cathode assembly for electron discharge device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1184424B (en) * 1962-10-15 1964-12-31 Philips Nv Indirectly heated cathode for an electrical discharge tube and process for its manufacture

Also Published As

Publication number Publication date
GB867021A (en) 1961-05-03

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