JPS56132747A - Magnetron - Google Patents

Magnetron

Info

Publication number
JPS56132747A
JPS56132747A JP3479480A JP3479480A JPS56132747A JP S56132747 A JPS56132747 A JP S56132747A JP 3479480 A JP3479480 A JP 3479480A JP 3479480 A JP3479480 A JP 3479480A JP S56132747 A JPS56132747 A JP S56132747A
Authority
JP
Japan
Prior art keywords
cathode
insulator
securing
cathode filament
filament
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
JP3479480A
Other languages
Japanese (ja)
Inventor
Tomokatsu Oguro
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 JP3479480A priority Critical patent/JPS56132747A/en
Publication of JPS56132747A publication Critical patent/JPS56132747A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01J23/14—Leading-in arrangements; Seals therefor

Abstract

PURPOSE:To improve the born-out strength of cathode filament while to uniform its characteristic and to improve the voltage withstanding characteristic, by securing a cathode support to the surface of an insulator at the side of cathode filament. CONSTITUTION:Cathode supports 3, 4 penetrating and supported by an insulator 2 is secured through a metal washer 18 to the upper face of the insulator 2, namely the surface facing a cathode filament 7. Although the insulator 2 is secured air- tightly to the sealing metal 19, said securing section is formed to provide a step against the securing face of the metallic washer 18. Cathode filament 7 is held on the tip section of the cathode supports 3, 4 through end shields 5, 6. Consequently the distance from the portion where the cathode supports 3, 4 are supported by the insulator 2 to the cathode filament 7 can be shortened.
JP3479480A 1980-03-21 1980-03-21 Magnetron Pending JPS56132747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3479480A JPS56132747A (en) 1980-03-21 1980-03-21 Magnetron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3479480A JPS56132747A (en) 1980-03-21 1980-03-21 Magnetron

Publications (1)

Publication Number Publication Date
JPS56132747A true JPS56132747A (en) 1981-10-17

Family

ID=12424162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3479480A Pending JPS56132747A (en) 1980-03-21 1980-03-21 Magnetron

Country Status (1)

Country Link
JP (1) JPS56132747A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57197159U (en) * 1981-06-10 1982-12-14
US4705989A (en) * 1984-12-28 1987-11-10 Kabushiki Kaisha Toshiba Magnetron with a ceramic stem having a cathode support structure
JPS6394536A (en) * 1986-10-08 1988-04-25 Hitachi Ltd Magnetron cathode structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5315244U (en) * 1976-07-19 1978-02-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5315244U (en) * 1976-07-19 1978-02-08

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57197159U (en) * 1981-06-10 1982-12-14
US4705989A (en) * 1984-12-28 1987-11-10 Kabushiki Kaisha Toshiba Magnetron with a ceramic stem having a cathode support structure
JPS6394536A (en) * 1986-10-08 1988-04-25 Hitachi Ltd Magnetron cathode structure

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