GB1133943A - Improvements in electron discharge devices - Google Patents

Improvements in electron discharge devices

Info

Publication number
GB1133943A
GB1133943A GB10252/66A GB1025266A GB1133943A GB 1133943 A GB1133943 A GB 1133943A GB 10252/66 A GB10252/66 A GB 10252/66A GB 1025266 A GB1025266 A GB 1025266A GB 1133943 A GB1133943 A GB 1133943A
Authority
GB
United Kingdom
Prior art keywords
sheath
anode
core
seal
cathode
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
GB10252/66A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1133943A publication Critical patent/GB1133943A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/36—Tubes with flat electrodes, e.g. disc electrode
    • 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
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • 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
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/32—Anodes
    • H01J19/36—Cooling of anodes
    • 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
    • H01J19/74—Cooling arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/06—Tubes with a single discharge path having electrostatic control means only
    • H01J21/065—Devices for short wave tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/20—Seals between parts of vessels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/32—Seals for leading-in conductors
    • H01J5/44—Annular seals disposed between the ends of the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0013—Sealed electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0027—Mitigation of temperature effects
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
    • H01J2893/0037—Solid sealing members other than lamp bases

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Plasma Technology (AREA)
  • Lasers (AREA)

Abstract

1,133,943. Thermionic valves. GENERAL ELECTRIC CO. 9 March, 1966 [2 April, 1965], No. 10252/66. Heading H1D. An anode assembly with high heat dissipation properties for a high frequency electric discharge device comprises a tubular anode sheath 32 having an outer surface portion intermediate its ends joined by a seal 28 to the surface of a bore in an insulating member 24, and a high thermal conductivity anode core 30, at least part of which extends externally of the envelope, which is secured to the sheath by a seal 38 at an end of the sheath adjacent the active anode surface 36. As shown, the upper surface of a flange 34 of the anode core is sealed to the lower surface of the sheath. A gap 40 is provided between the core and the sheath in the region of the coaxial seal 28 to compensate for the different thermal expansion properties of the members. The sheath may extend outwards of the device, Fig. 2 (not shown), to facilitate radio frequency terminal connection. The sheath may be formed of titanium, the core of molybdenum or other refractory metal, and the insulator of forsterite ceramic material. The remainder of the envelope of the device may comprise annular grid and cathode terminals 14, 16 insulated by ceramic spacer 20, and the lower end may be closed by a ceramic header 22 through which the cathode header leads pass. Anode surface 36 is close and parallel to grid 15 and cathode 17. Other anode terminal and sealing arrangements are described, Figs. 3-5 (not shown).
GB10252/66A 1965-04-02 1966-03-09 Improvements in electron discharge devices Expired GB1133943A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US445109A US3378716A (en) 1965-04-02 1965-04-02 Discharge device

Publications (1)

Publication Number Publication Date
GB1133943A true GB1133943A (en) 1968-11-20

Family

ID=23767631

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10252/66A Expired GB1133943A (en) 1965-04-02 1966-03-09 Improvements in electron discharge devices

Country Status (2)

Country Link
US (1) US3378716A (en)
GB (1) GB1133943A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761759A (en) * 1972-10-30 1973-09-25 Varian Associates Spewing shield for planar triode tubes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2414137A (en) * 1944-02-29 1947-01-14 Philco Corp Electron tube
US2784337A (en) * 1953-10-21 1957-03-05 Honeywell Regulator Co Electron discharge device
US2857663A (en) * 1954-02-09 1958-10-28 Gen Electric Metallic bond
US3050651A (en) * 1956-09-04 1962-08-21 Gen Electric High temperature electron discharge device and apparatus

Also Published As

Publication number Publication date
US3378716A (en) 1968-04-16
DE1539993B2 (en) 1972-08-24
DE1539993A1 (en) 1970-03-26

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