GB310760A - Improvements in or relating to thermionic valves - Google Patents
Improvements in or relating to thermionic valvesInfo
- Publication number
- GB310760A GB310760A GB3226227A GB3226227A GB310760A GB 310760 A GB310760 A GB 310760A GB 3226227 A GB3226227 A GB 3226227A GB 3226227 A GB3226227 A GB 3226227A GB 310760 A GB310760 A GB 310760A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- electrodes
- anode
- leads
- contacts
- 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
- H01J19/02—Electron-emitting electrodes; Cathodes
-
- 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
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
310,760. Bullimore, W. R. Nov. 30, 1927. Addition to 192,464. Vacuum tubes.-In a valve with spherical electrodes according to the parent Specification, two or more grids are provided, to one or more of which a high potential is applied so as to cause it to act as a screening grid. As shown a spherically-wound, filament cathode is surrounded in turn by a control grid b, a screening grid c, and an anode a, the leads for the grid c or anode a or both being connected with contacts g at one end of the envelope, and the leads for the other electrodes with contacts j at the other end. Two or more of such structures may be mounted in a single envelope, and electrodes may be of hemispherical or segmental form without departing from the general spherical arrangement. One or more equipotential cathodes may be used.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3226227A GB310760A (en) | 1927-11-30 | 1927-11-30 | Improvements in or relating to thermionic valves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3226227A GB310760A (en) | 1927-11-30 | 1927-11-30 | Improvements in or relating to thermionic valves |
Publications (1)
Publication Number | Publication Date |
---|---|
GB310760A true GB310760A (en) | 1929-04-30 |
Family
ID=10335870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3226227A Expired GB310760A (en) | 1927-11-30 | 1927-11-30 | Improvements in or relating to thermionic valves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB310760A (en) |
-
1927
- 1927-11-30 GB GB3226227A patent/GB310760A/en not_active Expired
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