GB404672A - Improvements in electron discharge tubes - Google Patents
Improvements in electron discharge tubesInfo
- Publication number
- GB404672A GB404672A GB2044332A GB2044332A GB404672A GB 404672 A GB404672 A GB 404672A GB 2044332 A GB2044332 A GB 2044332A GB 2044332 A GB2044332 A GB 2044332A GB 404672 A GB404672 A GB 404672A
- Authority
- GB
- United Kingdom
- Prior art keywords
- built
- electrode
- anode
- portions
- fins
- 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
-
- 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
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
404,672. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., Connaught House, Aldwych, London.-(Rostas, E. ; 46, Avenue de Breteuil, Paris.) July 19, 1932, No. 20443. [Class 39 (i).] An electrode, preferably an anode, is built up of a plurality of elements of substantially L-shaped cross-section assembled to form an electrode having portions projecting towards the cathode. In one form, Fig. 3, washers 2, 3 having apertures 14 for the other electrodes to pass through, are soldered by their flanges 10, 11 to rods 6, 8. In another form, Fig. 6, a cylinder is built up from portions 12, 13, having inside flanges 2, 3. In another form, a flat plate having fins on one side is built up of L-shaped portions ; the fins may be parallel or at an angle to the edge of the electrode. The arrangement is stated to reduce secondary emission. The Provisional Specification describes also an anode having a perforated screen in front of and connected to it, and an anode consisting of a number of apertured discs spaced axially 1 mm. apart and surrounded by a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2044332A GB404672A (en) | 1932-07-19 | 1932-07-19 | Improvements in electron discharge tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2044332A GB404672A (en) | 1932-07-19 | 1932-07-19 | Improvements in electron discharge tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB404672A true GB404672A (en) | 1934-01-19 |
Family
ID=10146029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2044332A Expired GB404672A (en) | 1932-07-19 | 1932-07-19 | Improvements in electron discharge tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB404672A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2530703A (en) * | 1943-02-11 | 1950-11-21 | Hartford Nat Bank & Trust Co | Electric discharge tube with secondary emission prevention means |
-
1932
- 1932-07-19 GB GB2044332A patent/GB404672A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2530703A (en) * | 1943-02-11 | 1950-11-21 | Hartford Nat Bank & Trust Co | Electric discharge tube with secondary emission prevention means |
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