FR2303372A1 - Procede de prechauffage des cathodes en tungstene thorie de tubes electroniques de puissance, et tubes electroniques soumis a un tel procede - Google Patents
Procede de prechauffage des cathodes en tungstene thorie de tubes electroniques de puissance, et tubes electroniques soumis a un tel procedeInfo
- Publication number
- FR2303372A1 FR2303372A1 FR7506741A FR7506741A FR2303372A1 FR 2303372 A1 FR2303372 A1 FR 2303372A1 FR 7506741 A FR7506741 A FR 7506741A FR 7506741 A FR7506741 A FR 7506741A FR 2303372 A1 FR2303372 A1 FR 2303372A1
- Authority
- FR
- France
- Prior art keywords
- temp
- cathodes
- switched
- preheating
- tube
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/02—Electron-emitting electrodes; Cathodes
- H01J19/04—Thermionic cathodes
-
- 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
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7506741A FR2303372A1 (fr) | 1975-03-04 | 1975-03-04 | Procede de prechauffage des cathodes en tungstene thorie de tubes electroniques de puissance, et tubes electroniques soumis a un tel procede |
DE19762608746 DE2608746A1 (de) | 1975-03-04 | 1976-03-03 | Verfahren zum vorerhitzen der thoriumhaltigen wolframkatoden von elektronenroehren grosser leistung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7506741A FR2303372A1 (fr) | 1975-03-04 | 1975-03-04 | Procede de prechauffage des cathodes en tungstene thorie de tubes electroniques de puissance, et tubes electroniques soumis a un tel procede |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2303372A1 true FR2303372A1 (fr) | 1976-10-01 |
FR2303372B1 FR2303372B1 (fr) | 1977-09-23 |
Family
ID=9152067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7506741A Granted FR2303372A1 (fr) | 1975-03-04 | 1975-03-04 | Procede de prechauffage des cathodes en tungstene thorie de tubes electroniques de puissance, et tubes electroniques soumis a un tel procede |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2608746A1 (fr) |
FR (1) | FR2303372A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010128A1 (fr) * | 1978-08-31 | 1980-04-30 | Siemens Aktiengesellschaft | Cathode à chauffage direct pour tube électronique à structure d'électrodes coaxiale et procédé de fabrication d'une telle cathode |
-
1975
- 1975-03-04 FR FR7506741A patent/FR2303372A1/fr active Granted
-
1976
- 1976-03-03 DE DE19762608746 patent/DE2608746A1/de active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010128A1 (fr) * | 1978-08-31 | 1980-04-30 | Siemens Aktiengesellschaft | Cathode à chauffage direct pour tube électronique à structure d'électrodes coaxiale et procédé de fabrication d'une telle cathode |
Also Published As
Publication number | Publication date |
---|---|
FR2303372B1 (fr) | 1977-09-23 |
DE2608746A1 (de) | 1976-09-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |