GB612470A - Improvements in or relating to electron discharge devices - Google Patents
Improvements in or relating to electron discharge devicesInfo
- Publication number
- GB612470A GB612470A GB15820/46A GB1582046A GB612470A GB 612470 A GB612470 A GB 612470A GB 15820/46 A GB15820/46 A GB 15820/46A GB 1582046 A GB1582046 A GB 1582046A GB 612470 A GB612470 A GB 612470A
- Authority
- GB
- United Kingdom
- Prior art keywords
- header
- joined
- electron discharge
- sealed
- grid
- 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
- 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
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0002—Construction arrangements of electrode systems
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
- X-Ray Techniques (AREA)
- Microwave Tubes (AREA)
Abstract
612,470. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. May 24, 1946, No. 15820. Convention date, May 28, 1945. [Class 39 (i)] An electron discharge device, e.g. an ultrahigh-frequency transmitting tube. of the type described in Specification 590,507, has a bulb portion 1, anode 3, grid 4, cathode 5, grid ring 6, shield 17 and dish-shaped header 2. Through the header are sealed radially disposed lead-in structures 7, 8 connected to the spiral cathode filaments terminating at a central castle element 11 carried by a support rod 12. This is joined to a perforated tubular support member 13 which passes coaxially through the central exhaust opening, its flanged upper end overlapping and being joined to a metal cup 14 bonded to the header. Sealed to the bottom of this cup is the exhaust tubulation 10, the perforations 16 in the tubular member 13 permitting evacuation of the envelope.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US612470XA | 1945-05-28 | 1945-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB612470A true GB612470A (en) | 1948-11-12 |
Family
ID=22034573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15820/46A Expired GB612470A (en) | 1945-05-28 | 1946-05-24 | Improvements in or relating to electron discharge devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB612470A (en) |
-
1946
- 1946-05-24 GB GB15820/46A patent/GB612470A/en not_active Expired
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