GB652382A - Improvements in or relating to electric discharge tubes - Google Patents
Improvements in or relating to electric discharge tubesInfo
- Publication number
- GB652382A GB652382A GB30192/47A GB3019247A GB652382A GB 652382 A GB652382 A GB 652382A GB 30192/47 A GB30192/47 A GB 30192/47A GB 3019247 A GB3019247 A GB 3019247A GB 652382 A GB652382 A GB 652382A
- Authority
- GB
- United Kingdom
- Prior art keywords
- flattened
- cathode
- mica
- parts
- nov
- 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
-
- 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
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
Landscapes
- Electron Sources, Ion Sources (AREA)
- Solid Thermionic Cathode (AREA)
- Electrostatic Spraying Apparatus (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL264502X | 1946-11-13 | ||
CH230150T | 1947-11-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB652382A true GB652382A (en) | 1951-04-25 |
Family
ID=25727444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30192/47A Expired GB652382A (en) | 1946-11-13 | 1947-11-13 | Improvements in or relating to electric discharge tubes |
Country Status (7)
Country | Link |
---|---|
US (1) | US2489367A (sk) |
BE (1) | BE478149A (sk) |
CH (1) | CH264502A (sk) |
DE (1) | DE890389C (sk) |
FR (1) | FR57812E (sk) |
GB (1) | GB652382A (sk) |
NL (1) | NL63789C (sk) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2626370A (en) * | 1949-05-26 | 1953-01-20 | Rca Corp | Filament structure for electron discharge device |
US4100449A (en) * | 1976-04-05 | 1978-07-11 | Rca Corporation | Uniform filament and method of making the same |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1700454A (en) * | 1924-07-08 | 1929-01-29 | Western Electric Co | Electron emitter and process of making the same |
US2112969A (en) * | 1926-12-11 | 1938-04-05 | Rca Corp | Cathode |
NL38569C (sk) * | 1933-06-24 |
-
0
- NL NL63789D patent/NL63789C/xx active
- BE BE478149D patent/BE478149A/xx unknown
-
1947
- 1947-11-04 CH CH264502D patent/CH264502A/de unknown
- 1947-11-12 FR FR57812D patent/FR57812E/fr not_active Expired
- 1947-11-13 GB GB30192/47A patent/GB652382A/en not_active Expired
- 1947-12-06 US US790105A patent/US2489367A/en not_active Expired - Lifetime
-
1948
- 1948-11-05 DE DEP20749D patent/DE890389C/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE478149A (sk) | |
CH264502A (de) | 1949-10-15 |
FR57812E (fr) | 1953-09-17 |
DE890389C (de) | 1953-09-17 |
NL63789C (sk) | |
US2489367A (en) | 1949-11-29 |
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