FR750898A - Thermionic cathodes, oxide coated - Google Patents
Thermionic cathodes, oxide coatedInfo
- Publication number
- FR750898A FR750898A FR750898DA FR750898A FR 750898 A FR750898 A FR 750898A FR 750898D A FR750898D A FR 750898DA FR 750898 A FR750898 A FR 750898A
- Authority
- FR
- France
- Prior art keywords
- oxide coated
- thermionic cathodes
- thermionic
- cathodes
- coated
- 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
- H01J1/14—Solid thermionic cathodes characterised by the material
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4585/32A GB397132A (en) | 1932-02-16 | 1932-02-16 | Improvements in oxide coated thermionic cathodes |
Publications (1)
Publication Number | Publication Date |
---|---|
FR750898A true FR750898A (en) | 1933-08-21 |
Family
ID=9779939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR750898D Expired FR750898A (en) | 1932-02-16 | 1933-02-16 | Thermionic cathodes, oxide coated |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE394417A (en) |
FR (1) | FR750898A (en) |
GB (1) | GB397132A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE889812C (en) * | 1941-03-14 | 1953-09-14 | Telefunken Gmbh | Incandescent cathode for electric discharge tubes |
-
0
- BE BE394417D patent/BE394417A/xx unknown
-
1932
- 1932-02-16 GB GB4585/32A patent/GB397132A/en not_active Expired
-
1933
- 1933-02-16 FR FR750898D patent/FR750898A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB397132A (en) | 1933-08-16 |
BE394417A (en) |
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