BE494593A - - Google Patents
Info
- Publication number
- BE494593A BE494593A BE494593DA BE494593A BE 494593 A BE494593 A BE 494593A BE 494593D A BE494593D A BE 494593DA BE 494593 A BE494593 A BE 494593A
- 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
-
- 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
- H03F1/42—Modifications of amplifiers to extend the bandwidth
- H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
- H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
- H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1011863T | 1949-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE494593A true BE494593A (nl) |
Family
ID=9570302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE494593D BE494593A (nl) | 1949-04-07 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE494593A (nl) |
| CH (1) | CH286259A (nl) |
| FR (1) | FR1011863A (nl) |
| GB (1) | GB717961A (nl) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2999984A (en) * | 1956-02-13 | 1961-09-12 | Honeywell Regulator Co | Series-energized cascaded transistor amplifier |
-
0
- BE BE494593D patent/BE494593A/xx unknown
-
1949
- 1949-04-07 FR FR1011863D patent/FR1011863A/fr not_active Expired
-
1950
- 1950-03-20 CH CH286259D patent/CH286259A/fr unknown
- 1950-03-21 GB GB7010/50A patent/GB717961A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB717961A (en) | 1954-11-03 |
| FR1011863A (fr) | 1952-07-01 |
| CH286259A (fr) | 1952-10-15 |