FR963340A - - Google Patents
Info
- Publication number
- FR963340A FR963340A FR963340DA FR963340A FR 963340 A FR963340 A FR 963340A FR 963340D A FR963340D A FR 963340DA FR 963340 A FR963340 A FR 963340A
- Authority
- FR
- France
- 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
- H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
- H01J3/02—Electron guns
- H01J3/026—Eliminating deleterious effects due to thermal effects, electric or magnetic field
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/36—Tubes with flat electrodes, e.g. disc electrode
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR963340A true FR963340A (en) | 1950-07-05 |
Family
ID=1564478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR963340D Expired FR963340A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR963340A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2899591A (en) * | 1959-08-11 | Electrical heating device | ||
| US3240978A (en) * | 1962-05-11 | 1966-03-15 | Sylvania Electric Prod | Cathode assembly for an electron tube |
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0
- FR FR963340D patent/FR963340A/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2899591A (en) * | 1959-08-11 | Electrical heating device | ||
| US3240978A (en) * | 1962-05-11 | 1966-03-15 | Sylvania Electric Prod | Cathode assembly for an electron tube |