BE497791A - - Google Patents
Info
- Publication number
- BE497791A BE497791A BE497791DA BE497791A BE 497791 A BE497791 A BE 497791A BE 497791D A BE497791D A BE 497791DA BE 497791 A BE497791 A BE 497791A
- 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
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices 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
- H03F1/56—Modifications of input or output impedances, not otherwise provided for
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL285606X | 1949-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE497791A true BE497791A (pt) |
Family
ID=19782497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE497791D BE497791A (pt) | 1949-08-30 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2769870A (pt) |
| BE (1) | BE497791A (pt) |
| CH (1) | CH285606A (pt) |
| DE (1) | DE820020C (pt) |
| FR (1) | FR1042616A (pt) |
| GB (1) | GB676590A (pt) |
| NL (1) | NL148405B (pt) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL148695B (nl) * | 1948-11-06 | Conch Int Methane Ltd | Thermisch geisoleerde houder. | |
| US2533001A (en) * | 1949-04-30 | 1950-12-05 | Rca Corp | Flip-flop counter circuit |
| US2647958A (en) * | 1949-10-25 | 1953-08-04 | Bell Telephone Labor Inc | Voltage and current bias of transistors |
-
0
- NL NL727211105A patent/NL148405B/xx unknown
- BE BE497791D patent/BE497791A/xx unknown
-
1950
- 1950-08-19 US US180390A patent/US2769870A/en not_active Expired - Lifetime
- 1950-08-25 GB GB21068/50A patent/GB676590A/en not_active Expired
- 1950-08-27 DE DEN1725A patent/DE820020C/de not_active Expired
- 1950-08-28 CH CH285606D patent/CH285606A/de unknown
- 1950-08-28 FR FR1042616D patent/FR1042616A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE820020C (de) | 1951-11-08 |
| GB676590A (en) | 1952-07-30 |
| CH285606A (de) | 1952-09-15 |
| FR1042616A (fr) | 1953-11-03 |
| US2769870A (en) | 1956-11-06 |
| NL148405B (nl) |