NL6504397A - - Google Patents
Info
- Publication number
- NL6504397A NL6504397A NL6504397A NL6504397A NL6504397A NL 6504397 A NL6504397 A NL 6504397A NL 6504397 A NL6504397 A NL 6504397A NL 6504397 A NL6504397 A NL 6504397A NL 6504397 A NL6504397 A NL 6504397A
- Authority
- NL
- Netherlands
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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
- H01J21/06—Tubes with a single discharge path having electrostatic control means only
- H01J21/065—Devices for short wave tubes
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6504397A NL6504397A (xx) | 1965-04-07 | 1965-04-07 | |
| US534489A US3402314A (en) | 1965-04-07 | 1966-03-15 | Gridded electron tube with dispenser cathode having coated surface portions |
| DE1564397A DE1564397C3 (de) | 1965-04-07 | 1966-04-02 | Elektrische Entladungsröhre mit einer Kathode, deren Oberfläche Teile mit höherer und Teile mit niedriger Elektronenemission hat |
| GB14853/66A GB1100420A (en) | 1965-04-07 | 1966-04-04 | Improvements in thermionic valves |
| AT317466A AT262459B (de) | 1965-04-07 | 1966-04-04 | Elektrische Entladungsröhre mit einer Kathode, deren Oberfläche Teile mit höherer und Teile mit niedriger Elektronenemission hat |
| CH491166A CH444976A (de) | 1965-04-07 | 1966-04-04 | Elektrische Entladungsröhre mit einer Kathode, deren Oberfläche Teile mit höherer und Teile mit niedrigerer Elektronenemission hat |
| ES0325122A ES325122A1 (es) | 1965-04-07 | 1966-04-05 | Un dispositivo de tubo de descarga electrica. |
| BE679168D BE679168A (xx) | 1965-04-07 | 1966-04-06 | |
| FR56819A FR1475212A (fr) | 1965-04-07 | 1966-04-07 | Tube à décharge dont la cathode comporte des zones à pouvoirs émissifs différents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6504397A NL6504397A (xx) | 1965-04-07 | 1965-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6504397A true NL6504397A (xx) | 1966-10-10 |
Family
ID=19792862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6504397A NL6504397A (xx) | 1965-04-07 | 1965-04-07 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3402314A (xx) |
| AT (1) | AT262459B (xx) |
| BE (1) | BE679168A (xx) |
| CH (1) | CH444976A (xx) |
| DE (1) | DE1564397C3 (xx) |
| ES (1) | ES325122A1 (xx) |
| GB (1) | GB1100420A (xx) |
| NL (1) | NL6504397A (xx) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3648096A (en) * | 1968-09-26 | 1972-03-07 | Gen Electric | Electron beam focusing bipotential cathode |
| DE2449796C3 (de) * | 1974-10-19 | 1980-03-06 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Vorratskathode für eine gittergesteuerte Elektronenröhre und Verfahren zu ihrer Herstellung |
| US3967150A (en) * | 1975-01-31 | 1976-06-29 | Varian Associates | Grid controlled electron source and method of making same |
| DE2535467C2 (de) * | 1975-08-08 | 1985-06-05 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zum Herstellen einer Kathode einer gittergesteuerten Leistungsröhre |
| EP0004424A1 (en) * | 1978-03-23 | 1979-10-03 | Thorn Emi-Varian Limited | Thermionic cathode |
| US4250428A (en) * | 1979-05-09 | 1981-02-10 | The United States Of America As Represented By The Secretary Of The Army | Bonded cathode and electrode structure with layered insulation, and method of manufacture |
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1965
- 1965-04-07 NL NL6504397A patent/NL6504397A/xx unknown
-
1966
- 1966-03-15 US US534489A patent/US3402314A/en not_active Expired - Lifetime
- 1966-04-02 DE DE1564397A patent/DE1564397C3/de not_active Expired
- 1966-04-04 AT AT317466A patent/AT262459B/de active
- 1966-04-04 CH CH491166A patent/CH444976A/de unknown
- 1966-04-04 GB GB14853/66A patent/GB1100420A/en not_active Expired
- 1966-04-05 ES ES0325122A patent/ES325122A1/es not_active Expired
- 1966-04-06 BE BE679168D patent/BE679168A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE679168A (xx) | 1966-10-06 |
| ES325122A1 (es) | 1967-01-01 |
| AT262459B (de) | 1968-06-10 |
| DE1564397C3 (de) | 1974-10-31 |
| DE1564397B2 (de) | 1974-04-04 |
| CH444976A (de) | 1967-10-15 |
| DE1564397A1 (de) | 1970-02-12 |
| GB1100420A (en) | 1968-01-24 |
| US3402314A (en) | 1968-09-17 |