BE442229A - - Google Patents
Info
- Publication number
- BE442229A BE442229A BE442229DA BE442229A BE 442229 A BE442229 A BE 442229A BE 442229D A BE442229D A BE 442229DA BE 442229 A BE442229 A BE 442229A
- Authority
- BE
- Belgium
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
-
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/16—Monitoring arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Particle Accelerators (AREA)
- Amplifiers (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL604247X | 1940-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE442229A true BE442229A (en:Method) |
Family
ID=19787876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE442229D BE442229A (en:Method) | 1940-07-20 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2330582A (en:Method) |
| BE (1) | BE442229A (en:Method) |
| DE (1) | DE876253C (en:Method) |
| FR (1) | FR874459A (en:Method) |
| GB (1) | GB604247A (en:Method) |
| NL (1) | NL65109C (en:Method) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2454845A (en) * | 1943-05-04 | 1948-11-30 | Fed Telephone & Radio Corp | High-frequency oscillator circuit for induction heating apparatus |
| US2457790A (en) * | 1945-10-06 | 1948-12-28 | Brown Instr Co | Apparatus for sequentially keying and connecting a plurality of oscillators to a common output circuit |
| US2780673A (en) * | 1950-09-15 | 1957-02-05 | Westinghouse Electric Corp | Phasing system |
| NL83879C (en:Method) * | 1953-06-17 | 1957-01-15 | ||
| US2880274A (en) * | 1953-02-24 | 1959-03-31 | Gen Dynamics Corp | Telephone system |
| US2992363A (en) * | 1955-06-03 | 1961-07-11 | Gasaccumulator Svenska Ab | Stand-by unit arrangement |
| DE1040075B (de) * | 1956-07-03 | 1958-10-02 | Siemens Ag | Umschaltanordnung in elektroakustischen UEbertragungsanlagen |
| US3219913A (en) * | 1963-05-17 | 1965-11-23 | Brown Irving | Automatic maintenance circuit |
-
0
- BE BE442229D patent/BE442229A/xx unknown
- NL NL65109D patent/NL65109C/xx active
-
1941
- 1941-07-08 US US401532A patent/US2330582A/en not_active Expired - Lifetime
- 1941-07-22 DE DEN2313D patent/DE876253C/de not_active Expired
- 1941-07-30 FR FR874459D patent/FR874459A/fr not_active Expired
-
1945
- 1945-11-24 GB GB31763/45A patent/GB604247A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB604247A (en) | 1948-06-30 |
| DE876253C (de) | 1953-05-11 |
| US2330582A (en) | 1943-09-28 |
| FR874459A (fr) | 1942-08-07 |
| NL65109C (en:Method) |