FR826697A - Incandescent cathodes for cathode ray oscillographs - Google Patents
Incandescent cathodes for cathode ray oscillographsInfo
- Publication number
- FR826697A FR826697A FR826697DA FR826697A FR 826697 A FR826697 A FR 826697A FR 826697D A FR826697D A FR 826697DA FR 826697 A FR826697 A FR 826697A
- Authority
- FR
- France
- Prior art keywords
- cathode ray
- ray oscillographs
- incandescent cathodes
- cathodes
- incandescent
- 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
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
- H01J29/484—Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR826697T | 1936-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR826697A true FR826697A (en) | 1938-04-06 |
Family
ID=9282987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR826697D Expired FR826697A (en) | 1936-12-22 | 1936-12-22 | Incandescent cathodes for cathode ray oscillographs |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR826697A (en) |
GB (1) | GB485548A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2527127A (en) * | 1948-12-24 | 1950-10-24 | Bell Telephone Labor Inc | Electronic discharge device |
-
1936
- 1936-12-22 FR FR826697D patent/FR826697A/en not_active Expired
-
1937
- 1937-12-21 GB GB35354/37A patent/GB485548A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB485548A (en) | 1938-05-20 |
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