BE525471A - - Google Patents
Info
- Publication number
- BE525471A BE525471A BE525471DA BE525471A BE 525471 A BE525471 A BE 525471A BE 525471D A BE525471D A BE 525471DA BE 525471 A BE525471 A BE 525471A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/34—Dc amplifiers in which all stages are dc-coupled
- H03F3/343—Dc amplifiers in which all stages are dc-coupled with semiconductor devices only
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR315050X | 1953-05-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE525471A true BE525471A (xx) | 1956-05-25 |
Family
ID=8889574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE525471D BE525471A (xx) | 1953-05-09 | 1954-01-04 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2830134A (xx) |
| BE (1) | BE525471A (xx) |
| CH (1) | CH315050A (xx) |
| FR (1) | FR1081878A (xx) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2585078A (en) * | 1948-11-06 | 1952-02-12 | Bell Telephone Labor Inc | Negative resistance device utilizing semiconductor amplifier |
| US2666817A (en) * | 1950-11-09 | 1954-01-19 | Bell Telephone Labor Inc | Transistor amplifier and power supply therefor |
| US2622213A (en) * | 1951-09-19 | 1952-12-16 | Bell Telephone Labor Inc | Transistor circuit for pulse amplifier delay and the like |
-
1953
- 1953-05-07 FR FR1081878D patent/FR1081878A/fr not_active Expired
- 1953-07-30 CH CH315050D patent/CH315050A/fr unknown
-
1954
- 1954-01-04 BE BE525471D patent/BE525471A/xx unknown
- 1954-02-26 US US412674A patent/US2830134A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CH315050A (fr) | 1956-07-15 |
| US2830134A (en) | 1958-04-08 |
| FR1081878A (fr) | 1954-12-23 |