BE478852A - - Google Patents

Info

Publication number
BE478852A
BE478852A BE478852DA BE478852A BE 478852 A BE478852 A BE 478852A BE 478852D A BE478852D A BE 478852DA BE 478852 A BE478852 A BE 478852A
Authority
BE
Belgium
Application number
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.)
Publication of BE478852A publication Critical patent/BE478852A/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/36—Tubes with flat electrodes, e.g. disc electrode
    • 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
BE478852D 1942-06-26 BE478852A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US448541A US2367332A (en) 1942-06-26 1942-06-26 Cathode

Publications (1)

Publication Number Publication Date
BE478852A true BE478852A (fr)

Family

ID=23780713

Family Applications (1)

Application Number Title Priority Date Filing Date
BE478852D BE478852A (fr) 1942-06-26

Country Status (3)

Country Link
US (1) US2367332A (fr)
BE (1) BE478852A (fr)
FR (1) FR953655A (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899591A (en) * 1959-08-11 Electrical heating device
US2514925A (en) * 1942-11-09 1950-07-11 Gen Electric High-frequency electric discharge device and system therefor
US2454298A (en) * 1943-07-29 1948-11-23 Harold A Zahl Electronic tube
US2467420A (en) * 1943-11-18 1949-04-19 Jr Abraham Binneweg Short-wave adjustable radio tube
BE470922A (fr) * 1944-01-31
US2431273A (en) * 1944-04-17 1947-11-18 Rca Corp Electron discharge device employing a cavity resonator
US2462909A (en) * 1944-06-26 1949-03-01 Standard Telephones Cables Ltd High-frequency generator
US2452626A (en) * 1945-03-03 1948-11-02 Gen Electric X Ray Corp Electron emitter
US2459859A (en) * 1945-03-23 1949-01-25 Standard Telephones Cables Ltd Grid structure for electron discharge devices
US2446269A (en) * 1945-05-08 1948-08-03 Eitel Mccullough Inc Electrode mounting structure for electron tubes
US2441224A (en) * 1945-08-02 1948-05-11 Nat Union Radio Corp Electron discharge device
US2553580A (en) * 1945-08-22 1951-05-22 Sylvania Electric Prod Electron discharge device
US2472942A (en) * 1947-03-18 1949-06-14 Eitel Mccuilough Inc Electron tube
US2582684A (en) * 1949-07-12 1952-01-15 Eitel Mccullough Inc Electron tube structure
US2720608A (en) * 1951-03-13 1955-10-11 Wihtol Weltis Cathodes for electron tubes
BE511284A (fr) * 1951-05-11
US2695972A (en) * 1952-04-24 1954-11-30 Hartford Nat Bank & Trust Co Electric discharge tube for use at very high-frequencies and ultrahigh frequencies
US2875367A (en) * 1954-10-22 1959-02-24 Gen Electric Cathode structures
DE1133041B (de) * 1954-10-22 1962-07-12 Gen Electric Verfahren zur Herstellung eines aus einer duennen Folie bestehenden Heizers oder Kathodenkoerpers fuer eine mit Hochfrequenz geheizte Roehre und der nach dem Verfahren hergestellte Heizer oder Kathodenkoerper
US2878410A (en) * 1954-11-09 1959-03-17 Gen Electric Electronic tube structure
US2941109A (en) * 1957-10-25 1960-06-14 Eitel Mccullough Inc Tube having planar electrodes
DE1112209B (de) * 1959-03-20 1961-08-03 Siemens Ag Mittelbar geheizte Kathode mit einer scheibenfoermigen Emissionsflaeche und mit einer Halterung aus nahtlosem Folie-Rohr
US3263109A (en) * 1961-07-24 1966-07-26 Siemens Ag Electron source for corpuscular radiation apparatus operating on a pump including an indirectly heated cathode
US3187215A (en) * 1961-10-02 1965-06-01 Bendix Corp Spark gap device
US3246195A (en) * 1962-04-17 1966-04-12 Hitachi Ltd High-frequency electron tubes
US3522466A (en) * 1968-07-29 1970-08-04 Takeo Kamegaya Electric discharge lamps having hot cathode

Also Published As

Publication number Publication date
FR953655A (fr) 1949-12-12
US2367332A (en) 1945-01-16

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