GB1082448A - Improvements in discharge devices with temperature compensated structure - Google Patents
Improvements in discharge devices with temperature compensated structureInfo
- Publication number
- GB1082448A GB1082448A GB53863/65A GB5386365A GB1082448A GB 1082448 A GB1082448 A GB 1082448A GB 53863/65 A GB53863/65 A GB 53863/65A GB 5386365 A GB5386365 A GB 5386365A GB 1082448 A GB1082448 A GB 1082448A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- support
- expansion
- grid
- temperature compensated
- 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
Links
Classifications
-
- 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
- H01J21/10—Tubes with a single discharge path having electrostatic control means only with one or more immovable internal control electrodes, e.g. triode, pentode, octode
-
- 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
- H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
-
- 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
- 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
Landscapes
- Lasers (AREA)
- Microwave Tubes (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
1,082,448. Thermionic valves. GENERAL ELECTRIC CO. Dec. 20, 1965 [Jan. 4, 1965], No. 53863/65. Heading H1D. In a discharge tube comprising an anode 1 spaced from a planar grid 3, the peripheries of the grid and anode being separated and insulated from one another by ceramic spacer 8, movement of the anode surface 2 relative to the grid 3 due to thermal expansion of the anode is prevented by the provision of a member 13 between spacer 8 and the periphery 14 of anode support 15, the dimensions and coefficient of expansion of member 13 being such as to compensate for expansion of anode 1 and its support 15 during tube operation. The member 13 has a higher coefficient of expansion and a lower thermal conductivity than anode 1 and its support 15, and may be of T1, Zr, Ta or Nb, the anode being of W or Mo. In an alternative arrangement, support 15 is formed integrally with anode 1, and member 13 is replaced by the inner leg of an anode terminal ring of U-shaped cross-section, Fig. 2 (not shown). Specific dimensions and operating temperatures are given.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US423106A US3351800A (en) | 1965-01-04 | 1965-01-04 | Discharge device with compensated anode structure |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1082448A true GB1082448A (en) | 1967-09-06 |
Family
ID=23677701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB53863/65A Expired GB1082448A (en) | 1965-01-04 | 1965-12-20 | Improvements in discharge devices with temperature compensated structure |
Country Status (4)
Country | Link |
---|---|
US (1) | US3351800A (en) |
DE (1) | DE1489959C3 (en) |
FR (1) | FR1462667A (en) |
GB (1) | GB1082448A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3384776A (en) * | 1965-08-17 | 1968-05-21 | Gen Electric | Thermionic tube having a novel electrode support arrangement |
US4456851A (en) * | 1982-03-29 | 1984-06-26 | Rca Corporation | Electron tube having a low impedance reduced stress anode structure |
JP3403827B2 (en) * | 1994-09-19 | 2003-05-06 | 株式会社東芝 | Micro vacuum tube |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2720997A (en) * | 1952-04-05 | 1955-10-18 | Westinghouse Electric Corp | Seal for electron discharge device |
US2880349A (en) * | 1954-06-17 | 1959-03-31 | Eitelmccullough Inc | Ceramic electron tube |
US2792272A (en) * | 1954-10-22 | 1957-05-14 | Gen Electric | Metallic bond |
US2879428A (en) * | 1955-07-27 | 1959-03-24 | Eitel Mccullough Inc | Electron tube |
US3237049A (en) * | 1962-11-21 | 1966-02-22 | Gen Electric | Tunable high frequency electric discharge device with internal resonator |
-
1965
- 1965-01-04 US US423106A patent/US3351800A/en not_active Expired - Lifetime
- 1965-12-20 GB GB53863/65A patent/GB1082448A/en not_active Expired
- 1965-12-27 DE DE1489959A patent/DE1489959C3/en not_active Expired
- 1965-12-31 FR FR44529A patent/FR1462667A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1489959C3 (en) | 1976-01-02 |
DE1489959A1 (en) | 1969-09-11 |
DE1489959B2 (en) | 1975-05-22 |
US3351800A (en) | 1967-11-07 |
FR1462667A (en) | 1966-12-16 |
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