JPH0241858B2 - - Google Patents
Info
- Publication number
- JPH0241858B2 JPH0241858B2 JP2427681A JP2427681A JPH0241858B2 JP H0241858 B2 JPH0241858 B2 JP H0241858B2 JP 2427681 A JP2427681 A JP 2427681A JP 2427681 A JP2427681 A JP 2427681A JP H0241858 B2 JPH0241858 B2 JP H0241858B2
- Authority
- JP
- Japan
- Prior art keywords
- spacer
- filament
- lead
- center
- center lead
- 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.)
- Expired - Lifetime
Links
- 125000006850 spacer group Chemical group 0.000 claims description 19
- 238000005219 brazing Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000010304 firing Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- WLTSUBTXQJEURO-UHFFFAOYSA-N thorium tungsten Chemical compound [W].[Th] WLTSUBTXQJEURO-UHFFFAOYSA-N 0.000 description 2
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- 229910000929 Ru alloy Inorganic materials 0.000 description 1
- -1 W and Mo Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
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
- H01J1/15—Cathodes heated directly by an electric current
Landscapes
- Microwave Tubes (AREA)
- Solid Thermionic Cathode (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2427681A JPS57138743A (en) | 1981-02-23 | 1981-02-23 | Electronic tube cathode structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2427681A JPS57138743A (en) | 1981-02-23 | 1981-02-23 | Electronic tube cathode structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57138743A JPS57138743A (en) | 1982-08-27 |
| JPH0241858B2 true JPH0241858B2 (enrdf_load_stackoverflow) | 1990-09-19 |
Family
ID=12133674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2427681A Granted JPS57138743A (en) | 1981-02-23 | 1981-02-23 | Electronic tube cathode structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57138743A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6255847A (ja) * | 1985-09-04 | 1987-03-11 | Hitachi Ltd | マグネトロン用陰極 |
-
1981
- 1981-02-23 JP JP2427681A patent/JPS57138743A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57138743A (en) | 1982-08-27 |
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