NL193688A - - Google Patents
Info
- Publication number
- NL193688A NL193688A NL193688DA NL193688A NL 193688 A NL193688 A NL 193688A NL 193688D A NL193688D A NL 193688DA NL 193688 A NL193688 A NL 193688A
- 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
- H03F1/542—Replacing by standby devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL785961X | 1954-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL193688A true NL193688A (en) |
Family
ID=19832271
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL193688D NL193688A (en) | 1954-12-31 | ||
| NL84039D NL84039C (en) | 1954-12-31 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL84039D NL84039C (en) | 1954-12-31 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB785961A (en) |
| NL (2) | NL84039C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1126938B (en) * | 1960-10-06 | 1962-04-05 | Standard Elektrik Lorenz Ag | Circuit arrangement for the central control of switching devices by means of two similar, parallel-acting control devices in centralized telecommunication switching systems, in particular telephone switching systems |
-
0
- NL NL193688D patent/NL193688A/xx unknown
- NL NL84039D patent/NL84039C/xx active
-
1955
- 1955-12-30 GB GB37416/55A patent/GB785961A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL84039C (en) | |
| GB785961A (en) | 1957-11-06 |