NL246837A - - Google Patents
Info
- Publication number
- NL246837A NL246837A NL246837DA NL246837A NL 246837 A NL246837 A NL 246837A NL 246837D A NL246837D A NL 246837DA NL 246837 A NL246837 A NL 246837A
- Authority
- NL
- Netherlands
Links
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
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/22—Heaters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/06—Cathodes
- H01J17/063—Indirectly heated cathodes, e.g. by the discharge itself
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4357859A GB877756A (en) | 1959-12-22 | 1959-12-22 | Cathode heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL246837A true NL246837A (en:Method) |
Family
ID=10429377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL246837D NL246837A (en:Method) | 1959-12-22 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB877756A (en:Method) |
| NL (1) | NL246837A (en:Method) |
-
0
- NL NL246837D patent/NL246837A/xx unknown
-
1959
- 1959-12-22 GB GB4357859A patent/GB877756A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB877756A (en) | 1961-09-20 |