CH415872A - Grid for electron tubes - Google Patents
Grid for electron tubesInfo
- Publication number
- CH415872A CH415872A CH253963A CH253963A CH415872A CH 415872 A CH415872 A CH 415872A CH 253963 A CH253963 A CH 253963A CH 253963 A CH253963 A CH 253963A CH 415872 A CH415872 A CH 415872A
- Authority
- CH
- Switzerland
- Prior art keywords
- grid
- electron tubes
- tubes
- electron
- Prior art date
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
- H01J19/28—Non-electron-emitting electrodes; Screens
- H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
- H01J2893/0019—Chemical composition and manufacture
- H01J2893/002—Chemical composition and manufacture chemical
- H01J2893/0021—Chemical composition and manufacture chemical carbon
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR889759A FR1344220A (en) | 1962-03-02 | 1962-03-02 | Grid for electron tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
CH415872A true CH415872A (en) | 1966-06-30 |
Family
ID=8773876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH253963A CH415872A (en) | 1962-03-02 | 1963-02-28 | Grid for electron tubes |
Country Status (7)
Country | Link |
---|---|
US (1) | US3307063A (en) |
CH (1) | CH415872A (en) |
DE (1) | DE1194988C2 (en) |
ES (1) | ES285347A1 (en) |
FR (1) | FR1344220A (en) |
GB (1) | GB1011587A (en) |
NL (1) | NL139841B (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1523248A (en) * | 1967-03-07 | 1968-05-03 | Thomson Houston Comp Francaise | Improvements in methods of manufacturing electrodes in the form of grids for electron tubes, electrodes manufactured using these improved methods and electron tubes containing such electrodes |
FR1593831A (en) * | 1967-12-13 | 1970-06-01 | ||
DE2450261C3 (en) * | 1974-10-23 | 1980-06-26 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Process for the production of grid electrodes for electron tubes |
DE2623828A1 (en) * | 1976-05-28 | 1977-12-08 | Philips Patentverwaltung | ELECTRODE, IN PARTICULAR GRID-SHAPED ELECTRODE FOR ELECTRONIC TUBES, AND METHOD FOR MANUFACTURING THEREOF |
DE2613170B2 (en) * | 1976-03-27 | 1978-10-12 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Process for the production of grid electrodes for electron tubes |
FR2432215A1 (en) * | 1978-07-27 | 1980-02-22 | Thomson Csf | ELECTRONIC TUBE WITH CYLINDRICAL GRID IN PYROLYTIC GRAPHITE |
DE2838020B2 (en) * | 1978-08-31 | 1981-04-02 | Siemens AG, 1000 Berlin und 8000 München | Directly heated cathode for an electron tube with a coaxial electrode structure and process for its manufacture |
FR2437060A1 (en) * | 1978-09-19 | 1980-04-18 | Thomson Csf | PROCESS FOR MANUFACTURING PLANAR GRIDS IN PYROLYTIC GRAPHITE FOR ELECTRONIC TUBES |
US4277718A (en) * | 1979-11-07 | 1981-07-07 | Varian Associates, Inc. | Modular electron tube with carbon grid |
CS224267B1 (en) * | 1980-12-24 | 1984-01-16 | Slavomir Ing Zizka | Power tube grid |
SU1149329A1 (en) * | 1981-02-13 | 1985-04-07 | Организация П/Я Х-5263 | Grid electrode for electronic equipment and process for manufacturing it |
NL8300191A (en) * | 1983-01-19 | 1984-08-16 | Philips Nv | ELECTRIC DISCHARGE TUBE. |
NL8500220A (en) * | 1985-01-28 | 1986-08-18 | Philips Nv | ELECTRON TUBE. |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3172774A (en) * | 1965-03-09 | Method of forming composite graphite coated article | ||
US1612835A (en) * | 1917-01-23 | 1927-01-04 | Siemens Ag | Intermediate electrode in incandescent cathode tube |
CA353329A (en) * | 1931-11-09 | 1935-10-01 | The Canadian General Electric Company | Arc discharge apparatus |
US2054234A (en) * | 1933-07-29 | 1936-09-15 | Hygrade Sylvania Corp | Electric discharge device |
US2101462A (en) * | 1935-03-13 | 1937-12-07 | Farnsworth Television Inc | Grid |
US2193600A (en) * | 1935-04-10 | 1940-03-12 | Westinghouse Electric & Mfg Co | Carbon grid for transmitting vacuum tubes |
GB830532A (en) * | 1957-07-12 | 1960-03-16 | Standard Telephones Cables Ltd | Improvements in or relating to electron discharge tubes |
NL259428A (en) * | 1959-12-23 | |||
US3187502A (en) * | 1961-01-23 | 1965-06-08 | Gen Electric | Rocket nozzle |
US3138434A (en) * | 1961-04-26 | 1964-06-23 | Gen Electric | Deposition method of forming a pyrolytic graphite article |
FR1323676A (en) * | 1962-02-28 | 1963-04-12 | Thomson Houston Comp Francaise | electrode for electron tubes and method of its manufacture |
-
1962
- 1962-03-02 FR FR889759A patent/FR1344220A/en not_active Expired
-
1963
- 1963-02-22 ES ES285347A patent/ES285347A1/en not_active Expired
- 1963-02-27 NL NL63289517A patent/NL139841B/en not_active IP Right Cessation
- 1963-02-28 CH CH253963A patent/CH415872A/en unknown
- 1963-02-28 GB GB8073/63A patent/GB1011587A/en not_active Expired
- 1963-03-01 DE DE1963C0029281 patent/DE1194988C2/en not_active Expired
- 1963-04-02 US US269919A patent/US3307063A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE1194988C2 (en) | 1976-01-15 |
GB1011587A (en) | 1965-12-01 |
DE1194988B (en) | 1965-06-16 |
ES285347A1 (en) | 1963-06-16 |
NL139841B (en) | 1973-09-17 |
FR1344220A (en) | 1963-11-29 |
US3307063A (en) | 1967-02-28 |
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