NL6603090A - - Google Patents

Info

Publication number
NL6603090A
NL6603090A NL6603090A NL6603090A NL6603090A NL 6603090 A NL6603090 A NL 6603090A NL 6603090 A NL6603090 A NL 6603090A NL 6603090 A NL6603090 A NL 6603090A NL 6603090 A NL6603090 A NL 6603090A
Authority
NL
Netherlands
Application number
NL6603090A
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 filed Critical
Publication of NL6603090A publication Critical patent/NL6603090A/xx

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
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/04—Cathodes
    • H01J23/05—Cathodes having a cylindrical emissive surface, e.g. cathodes for magnetrons
    • 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
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Microwave Tubes (AREA)
NL6603090A 1965-03-11 1966-03-09 NL6603090A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10403/65A GB1129615A (en) 1965-03-11 1965-03-11 Improvements in or relating to electron discharge device cathodes

Publications (1)

Publication Number Publication Date
NL6603090A true NL6603090A (enrdf_load_stackoverflow) 1966-09-12

Family

ID=9967193

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6603090A NL6603090A (enrdf_load_stackoverflow) 1965-03-11 1966-03-09

Country Status (5)

Country Link
US (1) US3477110A (enrdf_load_stackoverflow)
CH (1) CH443494A (enrdf_load_stackoverflow)
DE (1) DE1539896B1 (enrdf_load_stackoverflow)
GB (1) GB1129615A (enrdf_load_stackoverflow)
NL (1) NL6603090A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3558966A (en) * 1967-03-01 1971-01-26 Semicon Associates Inc Directly heated dispenser cathode
GB8611967D0 (en) * 1986-05-16 1986-10-29 English Electric Valve Co Ltd Directly heated cathodes
GB2214704B (en) * 1988-01-20 1992-05-06 English Electric Valve Co Ltd Magnetrons
US7545089B1 (en) * 2005-03-21 2009-06-09 Calabazas Creek Research, Inc. Sintered wire cathode

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2589521A (en) * 1952-03-18 Heater
US1946603A (en) * 1929-05-09 1934-02-13 Electrons Inc Cathode for electrical discharge devices
US2175345A (en) * 1935-07-12 1939-10-10 Gen Electric Electric gaseous discharge device
US2287460A (en) * 1940-11-29 1942-06-23 Rca Corp Insulated heater and method of manufacture
US2867032A (en) * 1950-10-27 1959-01-06 Sylvania Electric Prod Method for producing vacuum tube heater elements
US3201639A (en) * 1955-02-09 1965-08-17 Philips Corp Thermionic dispenser cathode
US2878409A (en) * 1957-04-29 1959-03-17 Philips Corp Dispenser-type cathode and method of making
US3117249A (en) * 1960-02-16 1964-01-07 Sperry Rand Corp Embedded heater cathode
NL268393A (enrdf_load_stackoverflow) * 1960-08-19
US3307241A (en) * 1963-10-14 1967-03-07 Litton Prec Products Inc Process for making cathodes

Also Published As

Publication number Publication date
DE1539896B1 (de) 1970-08-20
US3477110A (en) 1969-11-11
CH443494A (fr) 1967-09-15
GB1129615A (en) 1968-10-09

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