FR1080710A - Improvements to oxide cathodes for electron tubes - Google Patents

Improvements to oxide cathodes for electron tubes

Info

Publication number
FR1080710A
FR1080710A FR1080710DA FR1080710A FR 1080710 A FR1080710 A FR 1080710A FR 1080710D A FR1080710D A FR 1080710DA FR 1080710 A FR1080710 A FR 1080710A
Authority
FR
France
Prior art keywords
electron tubes
oxide cathodes
cathodes
oxide
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 FR1080710A publication Critical patent/FR1080710A/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
FR1080710D 1953-04-20 1953-04-20 Improvements to oxide cathodes for electron tubes Expired FR1080710A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1080710T 1953-04-20

Publications (1)

Publication Number Publication Date
FR1080710A true FR1080710A (en) 1954-12-13

Family

ID=9609748

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1080710D Expired FR1080710A (en) 1953-04-20 1953-04-20 Improvements to oxide cathodes for electron tubes

Country Status (2)

Country Link
FR (1) FR1080710A (en)
GB (1) GB750864A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2651369A1 (en) * 1989-08-22 1991-03-01 Asea Brown Boveri QUASI OPTICAL GYROTRON.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2651369A1 (en) * 1989-08-22 1991-03-01 Asea Brown Boveri QUASI OPTICAL GYROTRON.
CH678671A5 (en) * 1989-08-22 1991-10-15 Asea Brown Boveri
US5134343A (en) * 1989-08-22 1992-07-28 Asea Brown Boveri Ltd. Quasi-optical gyrotron having an electron gun with alternating high and low density electron emitting segments

Also Published As

Publication number Publication date
GB750864A (en) 1956-06-20

Similar Documents

Publication Publication Date Title
FR1098838A (en) Improvements to cathode ray tubes
FR71337E (en) Cathode enhancements
CH336131A (en) Cathode ray tube
FR1080710A (en) Improvements to oxide cathodes for electron tubes
FR1118456A (en) Improvements to indirectly heated cathodes for thermionic tubes
FR1078606A (en) Improvements to emissive cathodes
FR1087046A (en) Improvements to cathode ray tubes
FR1074360A (en) Cathode for discharge tube
FR1106548A (en) Improvements to cathode structures for electron tubes
FR1282691A (en) Further development of indirectly heated oxide cathodes for electron tubes
FR1093817A (en) Improvements to the cathodes of electron tubes
FR1150153A (en) Thermoemissive cathodes for rhenium-supported electron tubes
FR1075330A (en) Improvements to emissive cathodes for electron tubes
FR1107589A (en) Improvements to oxide cathode supports
FR1053508A (en) Improvements to thermionic cathodes
FR1113555A (en) Cathode body for electron tube
FR1059489A (en) Cathode improvements for electron tubes
FR1099285A (en) Cathode ray tube
FR1077643A (en) Improvements to emissive cathodes for electron tubes
FR1081526A (en) Cathode enhancements
FR1110718A (en) Improvements to cathode-ray tubes for television and other similar uses
FR1087364A (en) Improvements to vacuum tubes
FR1098399A (en) Improvements to safety circuits for cathode ray tubes
FR1106559A (en) Improvements to so-called electron tubes
FR1053139A (en) Improvements to thermionic cathodes