JPS5442970A - Manufactue of thermionic cathode for electron tube - Google Patents
Manufactue of thermionic cathode for electron tubeInfo
- Publication number
- JPS5442970A JPS5442970A JP10913577A JP10913577A JPS5442970A JP S5442970 A JPS5442970 A JP S5442970A JP 10913577 A JP10913577 A JP 10913577A JP 10913577 A JP10913577 A JP 10913577A JP S5442970 A JPS5442970 A JP S5442970A
- Authority
- JP
- Japan
- Prior art keywords
- manufactue
- electron tube
- thermionic cathode
- thermionic
- cathode
- 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
Abstract
PURPOSE: To increase the intensity as well as to prevent occurrence of cracks by applying the etching treatment to the porous cylindrical substance of W which is formed with a comparatively high density of 16.0 - 17.5g/cm2 and then impregnating Th.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10913577A JPS5442970A (en) | 1977-09-10 | 1977-09-10 | Manufactue of thermionic cathode for electron tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10913577A JPS5442970A (en) | 1977-09-10 | 1977-09-10 | Manufactue of thermionic cathode for electron tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5442970A true JPS5442970A (en) | 1979-04-05 |
JPS5719546B2 JPS5719546B2 (en) | 1982-04-23 |
Family
ID=14502461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10913577A Granted JPS5442970A (en) | 1977-09-10 | 1977-09-10 | Manufactue of thermionic cathode for electron tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5442970A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6180621A (en) * | 1984-09-28 | 1986-04-24 | Matsushita Electric Ind Co Ltd | Tape recorder |
-
1977
- 1977-09-10 JP JP10913577A patent/JPS5442970A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5719546B2 (en) | 1982-04-23 |
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