CH403090A - Hot cathode for electron tubes and process for their manufacture - Google Patents
Hot cathode for electron tubes and process for their manufactureInfo
- Publication number
- CH403090A CH403090A CH1142262A CH1142262A CH403090A CH 403090 A CH403090 A CH 403090A CH 1142262 A CH1142262 A CH 1142262A CH 1142262 A CH1142262 A CH 1142262A CH 403090 A CH403090 A CH 403090A
- Authority
- CH
- Switzerland
- Prior art keywords
- manufacture
- hot cathode
- electron tubes
- tubes
- electron
- Prior art date
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1142262A CH403090A (en) | 1962-09-27 | 1962-09-27 | Hot cathode for electron tubes and process for their manufacture |
GB3770963A GB1015272A (en) | 1962-09-27 | 1963-09-25 | Incandescent cathode for electronic valves and process for producing same |
FR44028A FR1370363A (en) | 1962-09-27 | 1963-09-25 | Hot cathode for electron tubes and process for their manufacture |
NL298401D NL298401A (en) | 1962-09-27 | 1963-09-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1142262A CH403090A (en) | 1962-09-27 | 1962-09-27 | Hot cathode for electron tubes and process for their manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
CH403090A true CH403090A (en) | 1965-11-30 |
Family
ID=4373329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1142262A CH403090A (en) | 1962-09-27 | 1962-09-27 | Hot cathode for electron tubes and process for their manufacture |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH403090A (en) |
FR (1) | FR1370363A (en) |
GB (1) | GB1015272A (en) |
NL (1) | NL298401A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5814016B2 (en) * | 1978-03-31 | 1983-03-17 | 株式会社日立製作所 | Substrate metal plate material for directly heated oxide cathode |
US7795792B2 (en) * | 2006-02-08 | 2010-09-14 | Varian Medical Systems, Inc. | Cathode structures for X-ray tubes |
-
1962
- 1962-09-27 CH CH1142262A patent/CH403090A/en unknown
-
1963
- 1963-09-25 FR FR44028A patent/FR1370363A/en not_active Expired
- 1963-09-25 GB GB3770963A patent/GB1015272A/en not_active Expired
- 1963-09-25 NL NL298401D patent/NL298401A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
FR1370363A (en) | 1964-08-21 |
GB1015272A (en) | 1965-12-31 |
NL298401A (en) | 1965-11-25 |
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