GB619771A - Improvements in or relating to thermionic valves - Google Patents
Improvements in or relating to thermionic valvesInfo
- Publication number
- GB619771A GB619771A GB883546A GB883546A GB619771A GB 619771 A GB619771 A GB 619771A GB 883546 A GB883546 A GB 883546A GB 883546 A GB883546 A GB 883546A GB 619771 A GB619771 A GB 619771A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- anode
- filament
- constructed
- assembly
- 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
- H01J21/36—Tubes with flat electrodes, e.g. disc electrode
Landscapes
- Discharge Lamp (AREA)
Abstract
619,771. Thermionic valves. HIVAC, Ltd., and DIGGLE, H. March 21, 1946, No. 8835. [Class 39 (i)] A thermionic valve comprises a flat filament mounting, at least one flat grid 11, and at least one anode 15, assembled by a simple stacking process of laying one electrode on top of another in a. jig with interleaved frames 10, 14 of insulating material between the electrodes ; anode extensions 16 are made to hold the assembly in place and may be bent over to embrace the assembly. The electrodes other than the filament may be of V or U-shape. The filament may be constructed as described in Specification 619,136 and carries a frame 8 for the getter material; the grid may be constructed as described in Specification 619,770, [Group XXII]. The anode 15 is preferably narrower than the frame 14 to leave an opening for the escape of gas trapped between the electrodes. The spacers 10, 14 may be of mica or ceramic material. The electrodes may be arranged as two valve systems, one on each side of the cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB883546A GB619771A (en) | 1946-03-21 | 1946-03-21 | Improvements in or relating to thermionic valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB883546A GB619771A (en) | 1946-03-21 | 1946-03-21 | Improvements in or relating to thermionic valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB619771A true GB619771A (en) | 1949-03-15 |
Family
ID=9860125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB883546A Expired GB619771A (en) | 1946-03-21 | 1946-03-21 | Improvements in or relating to thermionic valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB619771A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1027327B (en) * | 1954-04-19 | 1958-04-03 | Sylvania Electric Prod | Holder of an indirectly heated cathode for electron tubes with a disk shape |
-
1946
- 1946-03-21 GB GB883546A patent/GB619771A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1027327B (en) * | 1954-04-19 | 1958-04-03 | Sylvania Electric Prod | Holder of an indirectly heated cathode for electron tubes with a disk shape |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB546543A (en) | Improvements relating to vacuum electric discharge devices | |
| GB441250A (en) | Improvements in and relating to oxide coated cathodes for gaseous electric discharge devices | |
| GB619771A (en) | Improvements in or relating to thermionic valves | |
| GB519278A (en) | Improvements in or relating to electron discharge tubes | |
| GB690420A (en) | Improvements in or relating to thermionic valves | |
| GB714528A (en) | Improvements in or relating to circuits for transforming the frequency of high-frequency oscillations | |
| GB650560A (en) | Grid-controlled gaseous electron discharge device | |
| GB655594A (en) | Improvements in or relating to electron discharge tubes | |
| GB619136A (en) | Improvements in or relating to the manufacture of cathodes of thermionic valves | |
| GB555478A (en) | Improved amplifying valve for high frequencies | |
| GB392815A (en) | Improvements in or relating to electric discharge tubes | |
| GB579653A (en) | Improvements relating to electric discharge devices | |
| GB607058A (en) | Improvements in or relating to electrical space discharge tubes | |
| GB642600A (en) | Improvements in or relating to electron discharge apparatus | |
| GB491685A (en) | Improvements in or relating to electron discharge devices | |
| GB705740A (en) | Improvements in and relating to electron discharge devices | |
| GB531903A (en) | Improvements in or relating to electron discharge devices | |
| GB662145A (en) | Electron discharge devices | |
| GB653153A (en) | Improvements in or relating to electron discharge devices | |
| GB679428A (en) | Control electrodes for electronic valves | |
| GB720606A (en) | Improvements in electrode assemblies for electron tubes | |
| GB974970A (en) | Improvements in or relating to electric discharge devices | |
| GB368407A (en) | An improved method of and means for assembling electrodes in thermionic valves | |
| GB688910A (en) | Thermionic valves | |
| GB647497A (en) | Improvements in or relating to electric discharge tubes |