CH344139A - Supply cathode for electric discharge tubes - Google Patents

Supply cathode for electric discharge tubes

Info

Publication number
CH344139A
CH344139A CH344139DA CH344139A CH 344139 A CH344139 A CH 344139A CH 344139D A CH344139D A CH 344139DA CH 344139 A CH344139 A CH 344139A
Authority
CH
Switzerland
Prior art keywords
electric discharge
discharge tubes
supply cathode
cathode
supply
Prior art date
Application number
Other languages
German (de)
Inventor
Paul Coppola Patrick
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH344139A publication Critical patent/CH344139A/en

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
CH344139D 1955-08-15 1956-08-13 Supply cathode for electric discharge tubes CH344139A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US528296A US2864028A (en) 1955-08-15 1955-08-15 Thermionic dispenser cathode

Publications (1)

Publication Number Publication Date
CH344139A true CH344139A (en) 1960-01-31

Family

ID=24105076

Family Applications (1)

Application Number Title Priority Date Filing Date
CH344139D CH344139A (en) 1955-08-15 1956-08-13 Supply cathode for electric discharge tubes

Country Status (6)

Country Link
US (1) US2864028A (en)
BE (1) BE550302A (en)
CH (1) CH344139A (en)
DE (1) DE1047321B (en)
FR (1) FR1173168A (en)
GB (1) GB800219A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1180435B (en) * 1958-12-12 1964-10-29 Varta Ag Continuous process for the production of sintered frameworks for foil electrodes, in particular strip electrodes, for electric accumulators
US3113236A (en) * 1959-06-23 1963-12-03 Philips Corp Oxide dispenser type cathode
US3258636A (en) * 1961-09-01 1966-06-28 Electron emitter with activator of sill cide, boride or carbide of solid solu- tion of barium and at least one other alkaline earth metal
US3594885A (en) * 1969-06-16 1971-07-27 Varian Associates Method for fabricating a dimpled concave dispenser cathode incorporating a grid
GB1582837A (en) * 1976-07-10 1981-01-14 Emi Varian Ltd Electron emitter
US4101800A (en) * 1977-07-06 1978-07-18 The United States Of America As Represented By The Secretary Of The Navy Controlled-porosity dispenser cathode
GB2100502B (en) * 1978-11-30 1983-08-03 Varian Associates Dispenser cathodes
FR2469792A1 (en) * 1979-11-09 1981-05-22 Thomson Csf THERMO-IONIC CATHODE, ITS MANUFACTURING METHOD, AND ELECTRONIC TUBE INCORPORATING SUCH A CATHODE
DE3374738D1 (en) * 1982-10-12 1988-01-07 Hughes Aircraft Co Method for fabricating a dispenser-reservoir housing for a dispenser cathode
DE3913338C2 (en) * 1989-04-22 1999-12-02 Aeg Elektronische Roehren Gmbh Investment material, in particular for cathodes of electron tubes, method for producing such an investment material and use of such an investment material
FR2647952A1 (en) * 1989-05-30 1990-12-07 Thomson Tubes Electroniques IMPREGNATED THERMOELECTRONIC CATHODE FOR ELECTRONIC TUBE
JPH11339633A (en) * 1997-11-04 1999-12-10 Sony Corp Impregnated cathode, method of manufacturing the same, electron gun and electron tube

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2121589A (en) * 1934-06-28 1938-06-21 Westinghouse Electric & Mfg Co Emissive incandescent cathode
GB450035A (en) * 1935-05-07 1936-07-09 Ets Claude Paz & Silva Improvements in electrodes for high-pressure metallic vapour electric discharge tubes
US2452075A (en) * 1941-12-18 1948-10-26 Raytheon Mfg Co Velocity modulation electron discharge tube
DE879872C (en) * 1942-08-19 1953-06-15 Siemens Ag Cathode for generating an electron beam
US2459841A (en) * 1943-06-08 1949-01-25 Glenn F Rouse Cathode
US2647216A (en) * 1950-04-01 1953-07-28 Rca Corp Dispenser cathode
DE895479C (en) * 1951-11-20 1953-11-02 Siemens Ag Cathode for electrical discharge vessels
NL83577C (en) * 1952-07-23

Also Published As

Publication number Publication date
DE1047321B (en) 1958-12-24
GB800219A (en) 1958-08-20
US2864028A (en) 1958-12-09
FR1173168A (en) 1959-02-20
BE550302A (en)

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