FR1146097A - Cathode for electronic discharge devices - Google Patents

Cathode for electronic discharge devices

Info

Publication number
FR1146097A
FR1146097A FR1146097DA FR1146097A FR 1146097 A FR1146097 A FR 1146097A FR 1146097D A FR1146097D A FR 1146097DA FR 1146097 A FR1146097 A FR 1146097A
Authority
FR
France
Prior art keywords
cathode
discharge devices
electronic discharge
electronic
devices
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 US485696A external-priority patent/US2858470A/en
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of FR1146097A publication Critical patent/FR1146097A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/04—Cathodes
    • H01J23/05—Cathodes having a cylindrical emissive surface, e.g. cathodes for magnetrons
FR1146097D 1955-02-02 1956-02-02 Cathode for electronic discharge devices Expired FR1146097A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US485696A US2858470A (en) 1955-02-02 1955-02-02 Cathode for electron discharge devices
US719829A US3015560A (en) 1955-02-02 1958-03-07 Method of fabricating cathode for electron discharge devices

Publications (1)

Publication Number Publication Date
FR1146097A true FR1146097A (en) 1957-11-06

Family

ID=27048449

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1146097D Expired FR1146097A (en) 1955-02-02 1956-02-02 Cathode for electronic discharge devices

Country Status (4)

Country Link
US (1) US3015560A (en)
DE (1) DE1059114B (en)
FR (1) FR1146097A (en)
GB (1) GB783836A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012230A (en) * 1975-07-07 1977-03-15 The United States Of America As Represented By The United States Energy Research And Development Administration Tungsten-nickel-cobalt alloy and method of producing same
JPH0760641B2 (en) * 1985-02-06 1995-06-28 新日本無線株式会社 Magnetron cathode
NL8700935A (en) * 1987-04-21 1988-11-16 Philips Nv IMPREGNATED CATHODES WITH A CHECKED POROSITY.
GB2214704B (en) * 1988-01-20 1992-05-06 English Electric Valve Co Ltd Magnetrons

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2557372A (en) * 1948-02-21 1951-06-19 Westinghouse Electric Corp Manufacture of thoria cathodes
FR1033986A (en) * 1951-03-14 1953-07-17 Thermoelectronic cathode
AT176925B (en) * 1951-07-20 1953-12-10 Philips Nv Method of manufacturing a supply cathode
AT176926B (en) * 1951-11-29 1953-12-10 Philips Nv Cylindrical supply cathode, especially for a magnetron tube
AT180338B (en) * 1952-02-27 1954-11-25 Philips Nv Cathode for an electric discharge tube and method for producing this cathode

Also Published As

Publication number Publication date
DE1059114B (en) 1959-06-11
US3015560A (en) 1962-01-02
GB783836A (en) 1957-10-02

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