GB491685A - Improvements in or relating to electron discharge devices - Google Patents
Improvements in or relating to electron discharge devicesInfo
- Publication number
- GB491685A GB491685A GB22008/37A GB2200837A GB491685A GB 491685 A GB491685 A GB 491685A GB 22008/37 A GB22008/37 A GB 22008/37A GB 2200837 A GB2200837 A GB 2200837A GB 491685 A GB491685 A GB 491685A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinders
- carried
- electrodes
- secured
- wires
- 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
- H01J21/02—Tubes with a single discharge path
- H01J21/06—Tubes with a single discharge path having electrostatic control means only
- H01J21/065—Devices for short wave tubes
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
- Electrostatic Separation (AREA)
Abstract
491,685. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. Aug. 10, 1937, No. 22008. Convention date, Oct. 7, 1936. [Class 39 (i)] The enclosing vessel of an electron - discharge device is composed of several parts secured together, one part supporting one or more electrodes of an electrode assembly and one or more contact members adapted to be grasped by contacts of electrodes of the assembly supported by another part, the contacting device being capable of movement lateral to that necessary to bring the parts together, whereby the electrodes carried on the separate parts may be aligned with each other. In the form shown, two electrode assemblies are carried by a structure consisting of two concentric cylinders 24, 27 each having top and bottom closure members, the outer cylinder 27 being metallically connected to a central post 13 from which the inner cylinder 24 is carried by insulators. The filamentary cathodes 11 are carried by the cross-bar 12 and J-shaped springs 15. The anodes 40 are supported by leads 44 passing through the top of the envelope. Each assembly forms a pentode comprising a control grid 21, Fig. 3, of U-shaped parallel wires secured to arms 17 extending from support rod 20, screen and suppressor grids 23, 26 of similar construction secured to cylinders 24, 27 respectively by welded bracing wires 25, 28, and a hollow crescent-shaped anode 40. The suppressor grids have solid end pieces 39. The connection to the shield grid is made by a blade 54 attached to the lead 53 and engaging two resilient strips 50 extending between studs 47 welded to the inner cylinder 24. Resilient wires 69 press against the insulators 48 surrounding the studs 47 and permit a slight rotary adjustment of the cylinders 24, 27. A shielding flange 38 extends from the bottom of cylinder 27. In a modification, the filament is a flat strip and the anodes are of carbon with three diverging flanges, the support rod passing through the centre flange. The cylinders 24, 27 act as a large surface condenser connected between the screen and suppressor grids.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US104389A US2105483A (en) | 1936-10-07 | 1936-10-07 | Electron discharge device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB491685A true GB491685A (en) | 1938-09-07 |
Family
ID=22300243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22008/37A Expired GB491685A (en) | 1936-10-07 | 1937-08-10 | Improvements in or relating to electron discharge devices |
Country Status (3)
Country | Link |
---|---|
US (1) | US2105483A (en) |
FR (1) | FR827426A (en) |
GB (1) | GB491685A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2456579A (en) * | 1942-10-30 | 1948-12-14 | Rca Corp | Electron discharge device for ultra high frequencies |
US2789243A (en) * | 1948-12-31 | 1957-04-16 | Raytheon Mfg Co | Electron discharge device having two sections |
-
1936
- 1936-10-07 US US104389A patent/US2105483A/en not_active Expired - Lifetime
-
1937
- 1937-08-10 GB GB22008/37A patent/GB491685A/en not_active Expired
- 1937-10-02 FR FR827426D patent/FR827426A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR827426A (en) | 1938-04-26 |
US2105483A (en) | 1938-01-18 |
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