GB177785A - Improvements in and applicable to three electrode thermionic valves or vacuum tubes - Google Patents
Improvements in and applicable to three electrode thermionic valves or vacuum tubesInfo
- Publication number
- GB177785A GB177785A GB8953/22A GB895322A GB177785A GB 177785 A GB177785 A GB 177785A GB 8953/22 A GB8953/22 A GB 8953/22A GB 895322 A GB895322 A GB 895322A GB 177785 A GB177785 A GB 177785A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- along
- grid
- vacuum tubes
- fall
- 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
- H01J19/82—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
Landscapes
- Electron Sources, Ion Sources (AREA)
Abstract
177,785. Rich, L. J. April 2, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Vacuum tubes.-In a three-electrode valve a fall of potential is produced along the grid which may be adjusted so as to be equal to or bear any relation to the fall along the cathode. The leads of a helical grid 6, surrounding a straight filament cathode 3, are brought outside the bulb, and connected with a battery through a variable resistance. Uniformitv in the'current in the valve between the cathode and the anode 9 along the length of these electrodes may be secured by making the fall along the grid slightly greater than that along the cathode. The resistance of the grid is preferably much higher than the resistance of the cathode so as to avoid heating.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US177785XA | 1921-04-02 | 1921-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB177785A true GB177785A (en) | 1923-04-12 |
Family
ID=21784494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8953/22A Expired GB177785A (en) | 1921-04-02 | 1922-03-29 | Improvements in and applicable to three electrode thermionic valves or vacuum tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB177785A (en) |
-
1922
- 1922-03-29 GB GB8953/22A patent/GB177785A/en not_active Expired
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