GB914484A - Improvements in electron discharge devices - Google Patents

Improvements in electron discharge devices

Info

Publication number
GB914484A
GB914484A GB700860A GB700860A GB914484A GB 914484 A GB914484 A GB 914484A GB 700860 A GB700860 A GB 700860A GB 700860 A GB700860 A GB 700860A GB 914484 A GB914484 A GB 914484A
Authority
GB
United Kingdom
Prior art keywords
cathode
magnesium oxide
base
magnesium hydroxide
electron discharge
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
GB700860A
Inventor
Nathan D Levin
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.)
Rauland Borg Corp
Original Assignee
Rauland Borg Corp
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 Rauland Borg Corp filed Critical Rauland Borg Corp
Priority to GB700860A priority Critical patent/GB914484A/en
Publication of GB914484A publication Critical patent/GB914484A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • H01J19/44—Insulation between electrodes or supports within the vacuum space
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02—Electron guns
    • H01J3/027—Construction of the gun or parts thereof

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Abstract

914,484. Discharge tubes. RAULAND CORPORATION. Feb. 29, 1960, No. 7008/60. Class 39 (1). To reduce electrical leakage between metal components of an electron discharge device, the surface of an insulating member separating the components is provided with an adherent granular coating of magnesium oxide formed by the thermal decomposition in situ of magnesium hydroxide. In the cathode-ray tube shown, the insulating tube base 29 and the ceramic wafer 9, which spaces cathode 15 from control grid 17, are brushed or sprayed with a finely divided insoluble suspension of magnesium hydroxide which is dried before the electron gun and base 29 are sealed to the tube neck. The coatings are heated sufficiently during sealing and subsequent processing of the device to be reduced to magnesium oxide.
GB700860A 1960-02-29 1960-02-29 Improvements in electron discharge devices Expired GB914484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB700860A GB914484A (en) 1960-02-29 1960-02-29 Improvements in electron discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB700860A GB914484A (en) 1960-02-29 1960-02-29 Improvements in electron discharge devices

Publications (1)

Publication Number Publication Date
GB914484A true GB914484A (en) 1963-01-02

Family

ID=9824884

Family Applications (1)

Application Number Title Priority Date Filing Date
GB700860A Expired GB914484A (en) 1960-02-29 1960-02-29 Improvements in electron discharge devices

Country Status (1)

Country Link
GB (1) GB914484A (en)

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