FI800122A - Direkt upphettad katod foer elektronroer - Google Patents

Direkt upphettad katod foer elektronroer

Info

Publication number
FI800122A
FI800122A FI800122A FI800122A FI800122A FI 800122 A FI800122 A FI 800122A FI 800122 A FI800122 A FI 800122A FI 800122 A FI800122 A FI 800122A FI 800122 A FI800122 A FI 800122A
Authority
FI
Finland
Prior art keywords
upphettad
cathods
direct
electronic electronics
electronics
Prior art date
Application number
FI800122A
Other languages
English (en)
Inventor
Hiroshi Fukushima
Ko Soeno
Hisashi Ando
Shigehiko Yamamoto
Toshiyuki Aida
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of FI800122A publication Critical patent/FI800122A/fi

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
    • H01J1/18—Supports; Vibration-damping arrangements
FI800122A 1979-01-19 1980-01-15 Direkt upphettad katod foer elektronroer FI800122A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP395579A JPS5596531A (en) 1979-01-19 1979-01-19 Directly heated cathode for electron tube

Publications (1)

Publication Number Publication Date
FI800122A true FI800122A (fi) 1980-07-20

Family

ID=11571517

Family Applications (1)

Application Number Title Priority Date Filing Date
FI800122A FI800122A (fi) 1979-01-19 1980-01-15 Direkt upphettad katod foer elektronroer

Country Status (4)

Country Link
US (1) US4310777A (fi)
JP (1) JPS5596531A (fi)
FI (1) FI800122A (fi)
GB (1) GB2041638B (fi)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55144631A (en) * 1979-04-28 1980-11-11 Hitachi Ltd Directly-heated cathode for electronic tube
JPS58154130A (ja) * 1982-03-10 1983-09-13 Hitachi Ltd 電子管用陰極
DE3323473A1 (de) * 1983-06-29 1985-01-03 Siemens AG, 1000 Berlin und 8000 München Schnellheizkathode
EP0143222B1 (de) * 1983-09-30 1987-11-11 BBC Aktiengesellschaft Brown, Boveri & Cie. Glühkathode mit hohem Emissionsvermögen für eine Elektronenröhre und Verfahren zu deren Herstellung
GB2147732B (en) * 1983-10-07 1987-11-04 English Electric Valve Co Ltd Improvements in or relating to travelling wave tubes
KR900007751B1 (ko) * 1985-05-25 1990-10-19 미쯔비시덴끼 가부시기가이샤 전자관 음극 및 그 제조방법
US4810926A (en) * 1987-07-13 1989-03-07 Syracuse University Impregnated thermionic cathode
FR2810446A1 (fr) * 2000-06-14 2001-12-21 Thomson Tubes & Displays Cathodes a oxyde amelioree et son procede de fabrication
US7791047B2 (en) * 2003-12-12 2010-09-07 Semequip, Inc. Method and apparatus for extracting ions from an ion source for use in ion implantation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5952503B2 (ja) * 1975-11-07 1984-12-20 株式会社日立製作所 直熱形酸化物陰極用基体金属板
JPS58813B2 (ja) * 1977-09-30 1983-01-08 株式会社日立製作所 電子管陰極及びその製造方法
JPS5814017B2 (ja) * 1978-04-05 1983-03-17 株式会社日立製作所 電子管用直熱型陰極

Also Published As

Publication number Publication date
JPS5596531A (en) 1980-07-22
GB2041638B (en) 1983-01-26
GB2041638A (en) 1980-09-10
US4310777A (en) 1982-01-12

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: HITACHI, LTD.