GB850814A - Improvements in or relating to electron discharge tubes - Google Patents
Improvements in or relating to electron discharge tubesInfo
- Publication number
- GB850814A GB850814A GB2736757A GB2736757A GB850814A GB 850814 A GB850814 A GB 850814A GB 2736757 A GB2736757 A GB 2736757A GB 2736757 A GB2736757 A GB 2736757A GB 850814 A GB850814 A GB 850814A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- discharge tubes
- electron discharge
- magnesium silicide
- nickel
- 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
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 4
- 229910021338 magnesium silicide Inorganic materials 0.000 abstract 2
- YTHCQFKNFVSQBC-UHFFFAOYSA-N magnesium silicide Chemical compound [Mg]=[Si]=[Mg] YTHCQFKNFVSQBC-UHFFFAOYSA-N 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- 239000012190 activator Substances 0.000 abstract 1
- 239000010406 cathode material Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
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
- H01J1/14—Solid thermionic cathodes characterised by the material
Landscapes
- Solid Thermionic Cathode (AREA)
- Inert Electrodes (AREA)
Abstract
850,814. Cathode materials and processing. TELEFUNKEN G.m.b.H. Aug. 30, 1957 [Dec. 20, 1956], No. 27367/57. Class 39(1). A cathode comprises a coating of an emissive oxide on a metal carrier, the latter containing magnesium silicide as an activator. The carrier may be nickel, and the magnesium silicide may be added during a melting stage, or mixed in powder form with powdered nickel and subsequently sintered.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET13017A DE1143934B (en) | 1956-12-20 | 1956-12-20 | Oxide cathode for electrical discharge tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB850814A true GB850814A (en) | 1960-10-05 |
Family
ID=7547203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2736757A Expired GB850814A (en) | 1956-12-20 | 1957-08-30 | Improvements in or relating to electron discharge tubes |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1143934B (en) |
| GB (1) | GB850814A (en) |
-
1956
- 1956-12-20 DE DET13017A patent/DE1143934B/en active Pending
-
1957
- 1957-08-30 GB GB2736757A patent/GB850814A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1143934B (en) | 1963-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB568962A (en) | Improvements in or relating to cathodes for electron discharge devices | |
| GB734311A (en) | Improvements in or relating to cathodes for use in electric discharge tubes, tubes comprising such cathodes and methods of manufacturing such cathodes | |
| GB751507A (en) | "improvements in or relating to cathode bodies" | |
| GB831133A (en) | Improvements relating to thermionic cathodes | |
| GB793726A (en) | Improvements in or relating to dispenser cathodes | |
| GB1262420A (en) | Improvements in or relating to voltage overload protectors | |
| GB666053A (en) | Improvements in or relating to thermionic cathodes | |
| GB850814A (en) | Improvements in or relating to electron discharge tubes | |
| GB1525005A (en) | Thermionic reaction cathode | |
| GB816997A (en) | Improvements in or relating to dispenser cathodes | |
| GB538479A (en) | Cathodes for electron discharge devices and alloys therefor | |
| GB1038775A (en) | Improvements in or relating to cathode elements | |
| US2706554A (en) | Getter assembly | |
| GB1353517A (en) | Production of pure spherical powders | |
| GB753280A (en) | Improvements in or relating to cathodes for use in electric discharge tubes | |
| GB797842A (en) | Improvements in or relating to the manufacture of electric discharge devices | |
| GB741369A (en) | Improvements in and relating to thermionic cathodes | |
| GB616487A (en) | Improvements in or relating to electron emission filaments | |
| JPS5641635A (en) | Directly heated type oxide cathhod | |
| GB741945A (en) | Improvements to electron emitters | |
| GB813609A (en) | Improvements in or relating to thermionic valves | |
| GB705126A (en) | Improvements in or relating to cathodes for electric discharge tubes | |
| GB827150A (en) | Vacuum-tube cathodes | |
| GB790002A (en) | Improvements in or relating to sintered barium cathodes | |
| GB749429A (en) | Improvements in the manufacture of electron emissive cathodes |