GB550435A - Improvements in or relating to electric discharge tubes - Google Patents
Improvements in or relating to electric discharge tubesInfo
- Publication number
- GB550435A GB550435A GB1133741A GB1133741A GB550435A GB 550435 A GB550435 A GB 550435A GB 1133741 A GB1133741 A GB 1133741A GB 1133741 A GB1133741 A GB 1133741A GB 550435 A GB550435 A GB 550435A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- electric discharge
- discharge tubes
- philips
- cathode
- 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
- H01J21/20—Tubes with more than one discharge path; Multiple tubes, e.g. double diode, triode-hexode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/003—Tubes with plural electrode systems
Landscapes
- Discharge Lamp (AREA)
Abstract
550,435. Thermionic valves. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Sept. 4, 1941, No. 11337. [Class 39 (i)] A valve for use in push-pull arrangements comprises a single cathode 5 having two separate emitting surfaces in the form of segments of cylinders at the centres of which strip-like anodes 8, 9 are placed. A grid or grids 6, 7 are interposed in each electron path ; they are shaped concentrically with the cathode surfaces. Specification 507,270 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1133741A GB550435A (en) | 1941-09-04 | 1941-09-04 | Improvements in or relating to electric discharge tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1133741A GB550435A (en) | 1941-09-04 | 1941-09-04 | Improvements in or relating to electric discharge tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB550435A true GB550435A (en) | 1943-01-07 |
Family
ID=9984401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1133741A Expired GB550435A (en) | 1941-09-04 | 1941-09-04 | Improvements in or relating to electric discharge tubes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB550435A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2680208A (en) * | 1949-02-01 | 1954-06-01 | Sylvania Electric Prod | Electron discharge device |
-
1941
- 1941-09-04 GB GB1133741A patent/GB550435A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2680208A (en) * | 1949-02-01 | 1954-06-01 | Sylvania Electric Prod | Electron discharge device |
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