GB797762A - Improvements in or relating to the manufacture of thermionic valves - Google Patents

Improvements in or relating to the manufacture of thermionic valves

Info

Publication number
GB797762A
GB797762A GB2298655A GB2298655A GB797762A GB 797762 A GB797762 A GB 797762A GB 2298655 A GB2298655 A GB 2298655A GB 2298655 A GB2298655 A GB 2298655A GB 797762 A GB797762 A GB 797762A
Authority
GB
United Kingdom
Prior art keywords
relating
manufacture
thermionic valves
thermionic
aug
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
GB2298655A
Inventor
Ivor Brodie
John Thomas Arthur Harvey
Kenneth Jackson
Ronald Osmond Jenkins
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.)
MO Valve Co Ltd
Original Assignee
MO Valve Co 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 MO Valve Co Ltd filed Critical MO Valve Co Ltd
Priority to GB2298655A priority Critical patent/GB797762A/en
Publication of GB797762A publication Critical patent/GB797762A/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
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • H01J1/142—Solid thermionic cathodes characterised by the material with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material
    • 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)
  • Details Of Valves (AREA)
  • Electron Sources, Ion Sources (AREA)

Abstract

797,762. Cathode materials and processing. M-O VALVE CO., Ltd. Aug. 2, 1956 [Aug. 9, 1955], No. 22986/55. Class 39(1). The cathode of a thermionic valve is manufactured in a manner identical with that described in Specification No. 797,842.
GB2298655A 1955-08-09 1955-08-09 Improvements in or relating to the manufacture of thermionic valves Expired GB797762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2298655A GB797762A (en) 1955-08-09 1955-08-09 Improvements in or relating to the manufacture of thermionic valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2298655A GB797762A (en) 1955-08-09 1955-08-09 Improvements in or relating to the manufacture of thermionic valves

Publications (1)

Publication Number Publication Date
GB797762A true GB797762A (en) 1958-07-09

Family

ID=10188248

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2298655A Expired GB797762A (en) 1955-08-09 1955-08-09 Improvements in or relating to the manufacture of thermionic valves

Country Status (1)

Country Link
GB (1) GB797762A (en)

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