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JPS5245258A - Method of electrode treatment of electron guns for color braun tubes - Google Patents

Method of electrode treatment of electron guns for color braun tubes

Info

Publication number
JPS5245258A
JPS5245258A JP12063975A JP12063975A JPS5245258A JP S5245258 A JPS5245258 A JP S5245258A JP 12063975 A JP12063975 A JP 12063975A JP 12063975 A JP12063975 A JP 12063975A JP S5245258 A JPS5245258 A JP S5245258A
Authority
JP
Japan
Prior art keywords
electron guns
electrode treatment
braun tubes
color braun
grid electrode
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.)
Pending
Application number
JP12063975A
Other languages
Japanese (ja)
Inventor
Takanori Sato
Kikuo Yamamoto
Akio Yamaguchi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12063975A priority Critical patent/JPS5245258A/en
Publication of JPS5245258A publication Critical patent/JPS5245258A/en
Pending legal-status Critical Current

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
    • H01J9/44—Factory adjustment of completed discharge tubes or lamps to comply with desired tolerances
    • H01J9/445—Aging of tubes or lamps, e.g. by "spot knocking"

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE:First grid electrode and second grid electrode as well as cathode, heater are integrally grounded, then direct-current or pulsating voltage is applied to third grid electrode, whereby the discharge between second and third electrodes is prevented.
JP12063975A 1975-10-08 1975-10-08 Method of electrode treatment of electron guns for color braun tubes Pending JPS5245258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12063975A JPS5245258A (en) 1975-10-08 1975-10-08 Method of electrode treatment of electron guns for color braun tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12063975A JPS5245258A (en) 1975-10-08 1975-10-08 Method of electrode treatment of electron guns for color braun tubes

Publications (1)

Publication Number Publication Date
JPS5245258A true JPS5245258A (en) 1977-04-09

Family

ID=14791187

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12063975A Pending JPS5245258A (en) 1975-10-08 1975-10-08 Method of electrode treatment of electron guns for color braun tubes

Country Status (1)

Country Link
JP (1) JPS5245258A (en)

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