FR783739A - Incandescent cathode improvements - Google Patents
Incandescent cathode improvementsInfo
- Publication number
- FR783739A FR783739A FR783739DA FR783739A FR 783739 A FR783739 A FR 783739A FR 783739D A FR783739D A FR 783739DA FR 783739 A FR783739 A FR 783739A
- Authority
- FR
- France
- Prior art keywords
- incandescent cathode
- incandescent
- cathode
- cathode improvements
- 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
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/28—Dispenser-type cathodes, e.g. L-cathode
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE783739X | 1934-01-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR783739A true FR783739A (en) | 1935-07-18 |
Family
ID=6697981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR783739D Expired FR783739A (en) | 1934-01-12 | 1935-01-08 | Incandescent cathode improvements |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR783739A (en) |
-
1935
- 1935-01-08 FR FR783739D patent/FR783739A/en not_active Expired
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