NL292397A - - Google Patents
Info
- Publication number
- NL292397A NL292397A NL292397DA NL292397A NL 292397 A NL292397 A NL 292397A NL 292397D A NL292397D A NL 292397DA NL 292397 A NL292397 A NL 292397A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
- H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
- H03F1/544—Protection of filaments
-
- 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
- H01J1/135—Circuit arrangements therefor, e.g. for temperature control
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microwave Tubes (AREA)
- General Induction Heating (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL292397A NL139638B (nl) | 1963-05-06 | 1963-05-06 | Inrichting voor het opwekken of ontvangen van hoogfrequente elektrische trillingen, voorzien van ten minste een elektrische ontladingsbuis met direct verhitte kathode. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL292397A true NL292397A (fr) |
Family
ID=19754677
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL292397D NL292397A (fr) | 1963-05-06 | ||
| NL292397A NL139638B (nl) | 1963-05-06 | 1963-05-06 | Inrichting voor het opwekken of ontvangen van hoogfrequente elektrische trillingen, voorzien van ten minste een elektrische ontladingsbuis met direct verhitte kathode. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL292397A NL139638B (nl) | 1963-05-06 | 1963-05-06 | Inrichting voor het opwekken of ontvangen van hoogfrequente elektrische trillingen, voorzien van ten minste een elektrische ontladingsbuis met direct verhitte kathode. |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT242751B (fr) |
| BE (1) | BE647606A (fr) |
| CH (1) | CH422072A (fr) |
| DE (1) | DE1238968B (fr) |
| DK (1) | DK114281B (fr) |
| GB (1) | GB996364A (fr) |
| NL (2) | NL139638B (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119039073B (zh) * | 2024-08-24 | 2025-06-24 | 住商肥料（青岛）有限公司 | 一种脲醛缓释复合肥料的加工方法及装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2850676A (en) * | 1954-11-05 | 1958-09-02 | Hewlett Packard Co | Regulated filament supply |
-
0
- NL NL292397D patent/NL292397A/xx unknown
-
1963
- 1963-05-06 NL NL292397A patent/NL139638B/xx unknown
-
1964
- 1964-05-01 GB GB1818564A patent/GB996364A/en not_active Expired
- 1964-05-02 DE DE1964N0024914 patent/DE1238968B/de active Pending
- 1964-05-02 DK DK223164A patent/DK114281B/da unknown
- 1964-05-04 AT AT391364A patent/AT242751B/de active
- 1964-05-04 CH CH579064A patent/CH422072A/de unknown
- 1964-05-06 BE BE647606A patent/BE647606A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB996364A (en) | 1965-06-23 |
| DE1238968B (de) | 1967-04-20 |
| DK114281B (da) | 1969-06-16 |
| AT242751B (de) | 1965-10-11 |
| BE647606A (fr) | 1964-11-06 |
| CH422072A (de) | 1966-10-15 |
| NL139638B (nl) | 1973-08-15 |