GB1139006A - Improvements in or relating to indirectly-heated thermionic cathodes for electric discharge tubes - Google Patents

Improvements in or relating to indirectly-heated thermionic cathodes for electric discharge tubes

Info

Publication number
GB1139006A
GB1139006A GB29163/66A GB2916366A GB1139006A GB 1139006 A GB1139006 A GB 1139006A GB 29163/66 A GB29163/66 A GB 29163/66A GB 2916366 A GB2916366 A GB 2916366A GB 1139006 A GB1139006 A GB 1139006A
Authority
GB
United Kingdom
Prior art keywords
cathode
temperature
thermo
junction
support
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
GB29163/66A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1139006A publication Critical patent/GB1139006A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
    • C07D307/82—Benzo [b] furans; Hydrogenated benzo [b] furans with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the hetero ring
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Solid Thermionic Cathode (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Discharge Lamp (AREA)
GB29163/66A 1965-06-30 1966-06-29 Improvements in or relating to indirectly-heated thermionic cathodes for electric discharge tubes Expired GB1139006A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES97897A DE1223063B (de) 1965-06-30 1965-06-30 Mittelbar geheizte Kathode fuer elektrische Entladungsgefaesse und Verfahren zur Temperatur-regelung der Kathode

Publications (1)

Publication Number Publication Date
GB1139006A true GB1139006A (en) 1969-01-08

Family

ID=7521067

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29163/66A Expired GB1139006A (en) 1965-06-30 1966-06-29 Improvements in or relating to indirectly-heated thermionic cathodes for electric discharge tubes

Country Status (5)

Country Link
US (1) US3385997A (fi)
DE (1) DE1223063B (fi)
GB (1) GB1139006A (fi)
NL (1) NL6608031A (fi)
SE (1) SE300271B (fi)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6036056B2 (ja) * 1979-06-21 1985-08-17 株式会社東芝 陰極構体
DE3323473A1 (de) * 1983-06-29 1985-01-03 Siemens AG, 1000 Berlin und 8000 München Schnellheizkathode
DE3407434A1 (de) * 1984-02-29 1985-08-29 Siemens AG, 1000 Berlin und 8000 München Strahlerzeugersystem fuer elektronenroehren, insbesondere wanderfeldroehren

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2146365A (en) * 1934-12-13 1939-02-07 John C Batchelor Electron emitter
NL137438B (fi) * 1942-03-28
US2677787A (en) * 1950-05-08 1954-05-04 Charles V Litton Electron discharge device cathode assembly
US2655614A (en) * 1950-05-25 1953-10-13 Machlett Lab Inc Electron tube

Also Published As

Publication number Publication date
US3385997A (en) 1968-05-28
NL6608031A (fi) 1967-01-02
SE300271B (fi) 1968-04-22
DE1223063B (de) 1966-08-18

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