GB527433A - Improvements in or relating to electron discharge devices - Google Patents
Improvements in or relating to electron discharge devicesInfo
- Publication number
- GB527433A GB527433A GB1025939A GB1025939A GB527433A GB 527433 A GB527433 A GB 527433A GB 1025939 A GB1025939 A GB 1025939A GB 1025939 A GB1025939 A GB 1025939A GB 527433 A GB527433 A GB 527433A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- wire
- thermo
- heated during
- couple
- 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
- Particle Accelerators (AREA)
Abstract
527,433. Thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BANKS, G. B. April 1, 1939, No. 10259. [Classes 39 (i) and 40(v)] A thermo-couple is provided in the envelope of thermionic valves so as to be heated during the operation of the valve, and the current so generated is utilized to operate a variable reactance for the purpose of compensating varying inter-electrode capacity of the valve. As shown, the thermo-couple consists of a wire 1 of the same material as the anode and welded thereto, twisted round a wire 2 of different material having a lead 3 through the footstep of the valve. The current generated is passed through a coil rotatably mounted in the field of a permanent magnet and carrying a spindle with condenser blades movable between fixed blades. The thermocouple may be conductively connected to any other of the electrodes that become heated during the operation of the valve, or may be mounted in the neighbourhood thereof, the wire 1 in this case having a separate lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1025939A GB527433A (en) | 1939-04-01 | 1939-04-01 | Improvements in or relating to electron discharge devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1025939A GB527433A (en) | 1939-04-01 | 1939-04-01 | Improvements in or relating to electron discharge devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB527433A true GB527433A (en) | 1940-10-09 |
Family
ID=9964568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1025939A Expired GB527433A (en) | 1939-04-01 | 1939-04-01 | Improvements in or relating to electron discharge devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB527433A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2629757A (en) * | 1943-11-08 | 1953-02-24 | Warren Dunham Foster | Method of construction of sensitive thermopiles |
-
1939
- 1939-04-01 GB GB1025939A patent/GB527433A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2629757A (en) * | 1943-11-08 | 1953-02-24 | Warren Dunham Foster | Method of construction of sensitive thermopiles |
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