GB1100420A - Improvements in thermionic valves - Google Patents

Improvements in thermionic valves

Info

Publication number
GB1100420A
GB1100420A GB14853/66A GB1485366A GB1100420A GB 1100420 A GB1100420 A GB 1100420A GB 14853/66 A GB14853/66 A GB 14853/66A GB 1485366 A GB1485366 A GB 1485366A GB 1100420 A GB1100420 A GB 1100420A
Authority
GB
United Kingdom
Prior art keywords
cathode
grid
portions
thermionic
april
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
GB14853/66A
Other languages
English (en)
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1100420A publication Critical patent/GB1100420A/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
    • 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
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/06—Tubes with a single discharge path having electrostatic control means only
    • H01J21/065—Devices for short wave tubes

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Lasers (AREA)
  • Microwave Tubes (AREA)
GB14853/66A 1965-04-07 1966-04-04 Improvements in thermionic valves Expired GB1100420A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6504397A NL6504397A (xx) 1965-04-07 1965-04-07

Publications (1)

Publication Number Publication Date
GB1100420A true GB1100420A (en) 1968-01-24

Family

ID=19792862

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14853/66A Expired GB1100420A (en) 1965-04-07 1966-04-04 Improvements in thermionic valves

Country Status (8)

Country Link
US (1) US3402314A (xx)
AT (1) AT262459B (xx)
BE (1) BE679168A (xx)
CH (1) CH444976A (xx)
DE (1) DE1564397C3 (xx)
ES (1) ES325122A1 (xx)
GB (1) GB1100420A (xx)
NL (1) NL6504397A (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3648096A (en) * 1968-09-26 1972-03-07 Gen Electric Electron beam focusing bipotential cathode
DE2449796C3 (de) * 1974-10-19 1980-03-06 Philips Patentverwaltung Gmbh, 2000 Hamburg Vorratskathode für eine gittergesteuerte Elektronenröhre und Verfahren zu ihrer Herstellung
US3967150A (en) * 1975-01-31 1976-06-29 Varian Associates Grid controlled electron source and method of making same
DE2535467C2 (de) * 1975-08-08 1985-06-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum Herstellen einer Kathode einer gittergesteuerten Leistungsröhre
EP0004424A1 (en) * 1978-03-23 1979-10-03 Thorn Emi-Varian Limited Thermionic cathode
US4250428A (en) * 1979-05-09 1981-02-10 The United States Of America As Represented By The Secretary Of The Army Bonded cathode and electrode structure with layered insulation, and method of manufacture

Also Published As

Publication number Publication date
NL6504397A (xx) 1966-10-10
BE679168A (xx) 1966-10-06
ES325122A1 (es) 1967-01-01
AT262459B (de) 1968-06-10
DE1564397C3 (de) 1974-10-31
DE1564397B2 (de) 1974-04-04
CH444976A (de) 1967-10-15
DE1564397A1 (de) 1970-02-12
US3402314A (en) 1968-09-17

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