NL8020518A - Directly heated grating cathode for electron tube - is mfd. by spark machining intersecting spiral filaments of varying width in hollow cylinder - Google Patents

Directly heated grating cathode for electron tube - is mfd. by spark machining intersecting spiral filaments of varying width in hollow cylinder Download PDF

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Publication number
NL8020518A
NL8020518A NL8020518A NL8020518A NL8020518A NL 8020518 A NL8020518 A NL 8020518A NL 8020518 A NL8020518 A NL 8020518A NL 8020518 A NL8020518 A NL 8020518A NL 8020518 A NL8020518 A NL 8020518A
Authority
NL
Netherlands
Prior art keywords
cathode
filaments
holes
rings
filament
Prior art date
Application number
NL8020518A
Other languages
English (en)
Dutch (nl)
Original Assignee
Vladimir Nikolaevich Aleksandrov, Vladimir Fedorovich Ioffe En Oleg Vasilevich Filatov Allen Te Leningrad, U.S.S.R.
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 Vladimir Nikolaevich Aleksandrov, Vladimir Fedorovich Ioffe En Oleg Vasilevich Filatov Allen Te Leningrad, U.S.S.R. filed Critical Vladimir Nikolaevich Aleksandrov, Vladimir Fedorovich Ioffe En Oleg Vasilevich Filatov Allen Te Leningrad, U.S.S.R.
Publication of NL8020518A publication Critical patent/NL8020518A/nl

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
    • H01J1/15—Cathodes heated directly by an electric current

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Microwave Tubes (AREA)
NL8020518A 1980-02-05 1980-12-24 Directly heated grating cathode for electron tube - is mfd. by spark machining intersecting spiral filaments of varying width in hollow cylinder NL8020518A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SU802871003A SU1042105A1 (ru) 1980-02-05 1980-02-05 Решетчатый катод пр мого накала дл электронных ламп и способ его изготовлени
SU2871003 1980-02-05
SU8000215 1980-12-24
PCT/SU1980/000215 WO1981002364A1 (en) 1980-02-05 1980-12-24 Direct heating grid cathode for electron beam tubes and method of making it

Publications (1)

Publication Number Publication Date
NL8020518A true NL8020518A (en) 1982-01-04

Family

ID=20872827

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8020518A NL8020518A (en) 1980-02-05 1980-12-24 Directly heated grating cathode for electron tube - is mfd. by spark machining intersecting spiral filaments of varying width in hollow cylinder

Country Status (7)

Country Link
US (1) US4443735A (de)
JP (1) JPS57500804A (de)
DE (1) DE3050267T1 (de)
GB (1) GB2081504B (de)
NL (1) NL8020518A (de)
SU (1) SU1042105A1 (de)
WO (1) WO1981002364A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781640A (en) * 1985-01-24 1988-11-01 Varian Associates, Inc. Basket electrode shaping
US7763833B2 (en) * 2004-03-12 2010-07-27 Goodrich Corp. Foil heating element for an electrothermal deicer
US7923668B2 (en) * 2006-02-24 2011-04-12 Rohr, Inc. Acoustic nacelle inlet lip having composite construction and an integral electric ice protection heater disposed therein
WO2018129417A1 (en) * 2017-01-06 2018-07-12 Feldman Benjamin F Operating system for a cooking appliance

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468736A (en) * 1946-06-13 1949-05-03 Raytheon Mfg Co Slotted cathode structure
NL86395C (de) * 1950-05-17
DE882736C (de) * 1950-05-17 1953-07-13 Siemens Ag Kathode fuer Elektronenroehren
NL88786C (de) * 1955-04-02
FR1455956A (fr) * 1965-07-20 1966-05-20 Thomson Houston Comp Francaise Perfectionnements aux cathodes à chauffage direct
FR1490577A (fr) * 1966-05-18 1967-08-04 Thomson Houston Comp Francaise Perfectionnements aux cathodes à chauffage direct en forme de cage
DE1901207A1 (de) * 1969-01-10 1970-08-06 Siemens Ag Maschenkathode fuer Elektronenroehren hoher Leistung,insbesondere Senderoehren
NL7202069A (de) * 1972-02-17 1973-08-21
CH549283A (de) * 1972-09-06 1974-05-15 Bbc Brown Boveri & Cie Maschenkathode fuer elektronenroehren.
FR2255697B1 (de) * 1973-12-21 1977-08-12 Thomson Csf
US4230968A (en) * 1976-05-26 1980-10-28 Hitachi, Ltd. Cathode structure for magnetrons
NL7607038A (nl) * 1976-06-28 1977-12-30 Philips Nv Elektrische gloeilamp.

Also Published As

Publication number Publication date
GB2081504B (en) 1984-07-25
DE3050267C2 (de) 1989-03-09
JPS57500804A (de) 1982-05-06
SU1042105A1 (ru) 1983-09-15
WO1981002364A1 (en) 1981-08-20
US4443735A (en) 1984-04-17
GB2081504A (en) 1982-02-17
DE3050267T1 (de) 1982-04-15

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