JPS56106335A - Electron tube cathode structure - Google Patents

Electron tube cathode structure

Info

Publication number
JPS56106335A
JPS56106335A JP688080A JP688080A JPS56106335A JP S56106335 A JPS56106335 A JP S56106335A JP 688080 A JP688080 A JP 688080A JP 688080 A JP688080 A JP 688080A JP S56106335 A JPS56106335 A JP S56106335A
Authority
JP
Japan
Prior art keywords
section
welding
end seal
side lead
workability
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
JP688080A
Other languages
Japanese (ja)
Inventor
Mamoru Kurokuzuhara
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 JP688080A priority Critical patent/JPS56106335A/en
Publication of JPS56106335A publication Critical patent/JPS56106335A/en
Pending 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
    • H01J1/15—Cathodes heated directly by an electric current

Abstract

PURPOSE:To improve the workability by welding a side lead having a thined securing section with lower end seal to the lower end seal thereby eliminating the removal of the fused portin of the side lead. CONSTITUTION:A small diameter section 5b is formed at the tip of a side lead 5 to be welded with a lower end seal 3. When welding said section 5b to the lower end seal 3, the jule heat is concentrated to said section 5b during the electric resistance welding thereby the fusing out of the welded section 5a is reduced. Since the welding section is made of small diameter section 5b, the welding section 5a can be limited not to fuse out of the inner diameter or the outer diameter of the shield 3 thereby the removing work of the fused out portion is eliminated resulting in the improvement of the workability.
JP688080A 1980-01-25 1980-01-25 Electron tube cathode structure Pending JPS56106335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP688080A JPS56106335A (en) 1980-01-25 1980-01-25 Electron tube cathode structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP688080A JPS56106335A (en) 1980-01-25 1980-01-25 Electron tube cathode structure

Publications (1)

Publication Number Publication Date
JPS56106335A true JPS56106335A (en) 1981-08-24

Family

ID=11650533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP688080A Pending JPS56106335A (en) 1980-01-25 1980-01-25 Electron tube cathode structure

Country Status (1)

Country Link
JP (1) JPS56106335A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06197835A (en) * 1992-12-25 1994-07-19 Kiyomasa Suzuki Half-burn preventive incense holder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5380957A (en) * 1976-12-27 1978-07-17 Hitachi Ltd Filament supporter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5380957A (en) * 1976-12-27 1978-07-17 Hitachi Ltd Filament supporter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06197835A (en) * 1992-12-25 1994-07-19 Kiyomasa Suzuki Half-burn preventive incense holder

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