GB521558A - Improvements in or relating to electron discharge devices - Google Patents
Improvements in or relating to electron discharge devicesInfo
- Publication number
- GB521558A GB521558A GB3358238A GB3358238A GB521558A GB 521558 A GB521558 A GB 521558A GB 3358238 A GB3358238 A GB 3358238A GB 3358238 A GB3358238 A GB 3358238A GB 521558 A GB521558 A GB 521558A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- discharge devices
- electron discharge
- thermionic
- vangeen
- 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
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/46—Leading-in conductors
-
- 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
- H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
- H01J19/50—Spacing members extending to the envelope
-
- 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
- H01J2893/0002—Construction arrangements of electrode systems
- H01J2893/0005—Fixing of electrodes
- H01J2893/0008—Supply leads; Electrode supports via rigid connection to vessel
Landscapes
- Electronic Switches (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
521,558. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., and VANGEEN, A. I. Nov. 18, 1938, No. 33582. [Class 39 (i)] The leads of a thermionic valve are coated with copper to reduce skin resistance at high frequencies, the coating-which may be by electro-plating-being effected after . the tungsten lead has been sealed in the envelope. Specification 459,922. [Group XI], is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3358238A GB521558A (en) | 1938-11-18 | 1938-11-18 | Improvements in or relating to electron discharge devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3358238A GB521558A (en) | 1938-11-18 | 1938-11-18 | Improvements in or relating to electron discharge devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB521558A true GB521558A (en) | 1940-05-24 |
Family
ID=10354794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3358238A Expired GB521558A (en) | 1938-11-18 | 1938-11-18 | Improvements in or relating to electron discharge devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB521558A (en) |
-
1938
- 1938-11-18 GB GB3358238A patent/GB521558A/en not_active Expired
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