BE427228A - - Google Patents

Info

Publication number
BE427228A
BE427228A BE427228DA BE427228A BE 427228 A BE427228 A BE 427228A BE 427228D A BE427228D A BE 427228DA BE 427228 A BE427228 A BE 427228A
Authority
BE
Belgium
Application number
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.)
Publication of BE427228A publication Critical patent/BE427228A/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
    • H01J9/125—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes of secondary emission electrodes
    • 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
    • H01J1/32—Secondary-electron-emitting electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/32—Secondary emission electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
  • Solid Thermionic Cathode (AREA)
  • Gas-Filled Discharge Tubes (AREA)
BE427228D 1937-03-30 BE427228A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL207921X 1937-03-30

Publications (1)

Publication Number Publication Date
BE427228A true BE427228A (en:Method)

Family

ID=19778652

Family Applications (1)

Application Number Title Priority Date Filing Date
BE427228D BE427228A (en:Method) 1937-03-30

Country Status (7)

Country Link
US (1) US2159774A (en:Method)
BE (1) BE427228A (en:Method)
CH (1) CH207921A (en:Method)
DE (1) DE747205C (en:Method)
FR (1) FR835838A (en:Method)
GB (1) GB498792A (en:Method)
NL (1) NL50262C (en:Method)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE477661A (en:Method) * 1939-02-03
DE914418C (de) * 1939-02-19 1954-07-01 Fernseh Gmbh Entladungsroehre mit einer sekundaeremittierenden Isolieroberflaeche
FR857575A (fr) * 1939-02-27 1940-09-19 Materiel Telephonique Dispositifs à décharge électronique et circuits les utilisant
DE895629C (de) * 1940-07-31 1953-11-05 Zeiss Ikon Ag Verfahren zur Herstellung von Sekundaeremissionskathoden
US2422088A (en) * 1944-04-03 1947-06-10 Rca Corp Electronic discriminator
FR958107A (en:Method) * 1945-10-24 1950-03-03
GB683061A (en) * 1948-01-24 1952-11-19 Emi Ltd Improvements relating to thermionic valves utilising secondary electron emission amplification
US2792273A (en) * 1954-01-14 1957-05-14 Gen Electric Oxide coated nickel cathode and method of activation
US2878093A (en) * 1955-02-14 1959-03-17 Univ Minnesota Method of preparing emitter surfaces

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT101557B (de) * 1923-04-11 1925-11-10 Philips Nv Entladungsröhre.
BE359997A (en:Method) * 1928-05-14
GB443214A (en) * 1934-08-20 1936-02-20 Albert Karl Franz Patin Improved method of applying coatings of alkali or alkaline earth metals

Also Published As

Publication number Publication date
FR835838A (fr) 1939-01-04
NL50262C (en:Method)
GB498792A (en) 1939-01-13
DE747205C (de) 1944-09-15
CH207921A (de) 1939-12-15
US2159774A (en) 1939-05-23

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