JPH01115143U - - Google Patents
Info
- Publication number
- JPH01115143U JPH01115143U JP1208188U JP1208188U JPH01115143U JP H01115143 U JPH01115143 U JP H01115143U JP 1208188 U JP1208188 U JP 1208188U JP 1208188 U JP1208188 U JP 1208188U JP H01115143 U JPH01115143 U JP H01115143U
- Authority
- JP
- Japan
- Prior art keywords
- filament
- directly heated
- heated cathode
- shaped groove
- insulating substrate
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
Landscapes
- Solid Thermionic Cathode (AREA)
- Electron Sources, Ion Sources (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1208188U JPH01115143U (tr) | 1988-01-29 | 1988-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1208188U JPH01115143U (tr) | 1988-01-29 | 1988-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01115143U true JPH01115143U (tr) | 1989-08-02 |
Family
ID=31221206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1208188U Pending JPH01115143U (tr) | 1988-01-29 | 1988-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01115143U (tr) |
-
1988
- 1988-01-29 JP JP1208188U patent/JPH01115143U/ja active Pending