GB389176A - Improvements relating to thermionic valves - Google Patents
Improvements relating to thermionic valvesInfo
- Publication number
- GB389176A GB389176A GB3075631A GB3075631A GB389176A GB 389176 A GB389176 A GB 389176A GB 3075631 A GB3075631 A GB 3075631A GB 3075631 A GB3075631 A GB 3075631A GB 389176 A GB389176 A GB 389176A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament
- spreader
- branches
- thermionic valves
- 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
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
- H01J1/18—Supports; Vibration-damping arrangements
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
389,176. Thermionic valves. OCTRON, Ltd. and HOLT, W., Tyburn Road, Erding- ton, Birmingham. Nov. 6, 1931, No. 30756. [Class 39 (i).] The branches of a hairpin or like filament are maintained taut by a floating spreader of insulating material inserted be tween them so as to spread the branches apart and be supported by them, the arrangement being such that substantial clearance is left between the filament and grid supports and the spreader, which is thus perfectly free to move with the filament. As shown, the spreader consists of a mica plate 2 with V-shaped notches 3 receiving the branches 1 of the filament. The spreader is inserted between turns of the grid 4, and the edges are slightly spaced from the anode 5 ; vertical and lateral displacement are thus prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3075631A GB389176A (en) | 1931-11-06 | 1931-11-06 | Improvements relating to thermionic valves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3075631A GB389176A (en) | 1931-11-06 | 1931-11-06 | Improvements relating to thermionic valves |
Publications (1)
Publication Number | Publication Date |
---|---|
GB389176A true GB389176A (en) | 1933-03-16 |
Family
ID=10312639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3075631A Expired GB389176A (en) | 1931-11-06 | 1931-11-06 | Improvements relating to thermionic valves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB389176A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2570606A (en) * | 1949-05-12 | 1951-10-09 | Rca Corp | Damper bar for filamentary cathodes |
-
1931
- 1931-11-06 GB GB3075631A patent/GB389176A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2570606A (en) * | 1949-05-12 | 1951-10-09 | Rca Corp | Damper bar for filamentary cathodes |
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