CH221451A - Cathode ray tube with directly heated cathode. - Google Patents
Cathode ray tube with directly heated cathode.Info
- Publication number
- CH221451A CH221451A CH221451DA CH221451A CH 221451 A CH221451 A CH 221451A CH 221451D A CH221451D A CH 221451DA CH 221451 A CH221451 A CH 221451A
- Authority
- CH
- Switzerland
- Prior art keywords
- cathode
- ray tube
- directly heated
- cathode ray
- heated cathode
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
- H01J29/484—Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE221451X | 1940-11-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH221451A true CH221451A (en) | 1942-05-31 |
Family
ID=5840104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH221451D CH221451A (en) | 1940-11-30 | 1941-11-05 | Cathode ray tube with directly heated cathode. |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE443460A (en) |
CH (1) | CH221451A (en) |
FR (1) | FR877099A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1144405B (en) * | 1930-07-02 | 1963-02-28 | Philips Nv | Electron beam tubes with magnetic focusing means outside and inside the vacuum space, in particular klystron or traveling wave tubes |
-
0
- BE BE443460D patent/BE443460A/xx unknown
-
1941
- 1941-11-05 CH CH221451D patent/CH221451A/en unknown
- 1941-11-19 FR FR877099D patent/FR877099A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1144405B (en) * | 1930-07-02 | 1963-02-28 | Philips Nv | Electron beam tubes with magnetic focusing means outside and inside the vacuum space, in particular klystron or traveling wave tubes |
Also Published As
Publication number | Publication date |
---|---|
FR877099A (en) | 1942-11-26 |
BE443460A (en) |
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