FR978046A - Cathode Coating For Vacuum Tube - Google Patents
Cathode Coating For Vacuum TubeInfo
- Publication number
- FR978046A FR978046A FR978046DA FR978046A FR 978046 A FR978046 A FR 978046A FR 978046D A FR978046D A FR 978046DA FR 978046 A FR978046 A FR 978046A
- Authority
- FR
- France
- Prior art keywords
- vacuum tube
- cathode coating
- cathode
- coating
- vacuum
- 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 |
---|---|---|---|
FR978046T | 1948-11-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR978046A true FR978046A (en) | 1951-04-09 |
Family
ID=9520230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR978046D Expired FR978046A (en) | 1948-11-12 | 1948-11-12 | Cathode Coating For Vacuum Tube |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR978046A (en) |
-
1948
- 1948-11-12 FR FR978046D patent/FR978046A/en not_active Expired
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