BE503923A - - Google Patents
Info
- Publication number
- BE503923A BE503923A BE503923DA BE503923A BE 503923 A BE503923 A BE 503923A BE 503923D A BE503923D A BE 503923DA BE 503923 A BE503923 A BE 503923A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2647176X | 1950-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE503923A true BE503923A (en:Method) |
Family
ID=10912588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE503923D BE503923A (en:Method) | 1950-06-16 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2647176A (en:Method) |
| BE (1) | BE503923A (en:Method) |
| FR (1) | FR1048774A (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2863049A (en) * | 1952-09-17 | 1958-12-02 | Emi Ltd | Electric circuit arrangements for repeating the output of a selection of a pluralityof source circuits |
| US4565972A (en) * | 1985-03-18 | 1986-01-21 | Tx Rx Systems, Inc. | Tower mounted preamplifier |
| US5418490A (en) * | 1994-03-01 | 1995-05-23 | Tx Rx Systems, Inc. | Failure responsive alternate amplifier and bypass system for communications amplifier |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2396990A (en) * | 1943-12-09 | 1946-03-19 | Bell Telephone Labor Inc | Automatic line testing and switching circuits |
-
0
- BE BE503923D patent/BE503923A/xx unknown
-
1951
- 1951-06-06 US US230203A patent/US2647176A/en not_active Expired - Lifetime
- 1951-06-15 FR FR1048774D patent/FR1048774A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1048774A (fr) | 1953-12-23 |
| US2647176A (en) | 1953-07-28 |