BE622641A - - Google Patents
Info
- Publication number
- BE622641A BE622641A BE622641DA BE622641A BE 622641 A BE622641 A BE 622641A BE 622641D A BE622641D A BE 622641DA BE 622641 A BE622641 A BE 622641A
- 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
- H04B1/06—Receivers
- H04B1/16—Circuits
-
- 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
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
- H03F1/0244—Stepped control
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR873856A FR1308034A (en) | 1961-09-21 | 1961-09-21 | Radio receiver with transistors and headphones |
FR907045A FR82171E (en) | 1961-09-21 | 1962-08-16 | Radio receiver with transistors and headphones |
Publications (1)
Publication Number | Publication Date |
---|---|
BE622641A true BE622641A (en) |
Family
ID=26192391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE622641D BE622641A (en) | 1961-09-21 |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE622641A (en) |
CH (1) | CH396101A (en) |
DE (1) | DE1158118B (en) |
FR (2) | FR1308034A (en) |
GB (1) | GB949748A (en) |
OA (2) | OA048E (en) |
-
0
- BE BE622641D patent/BE622641A/xx unknown
-
1961
- 1961-09-21 FR FR873856A patent/FR1308034A/en not_active Expired
-
1962
- 1962-08-16 FR FR907045A patent/FR82171E/en not_active Expired
- 1962-09-18 DE DEN22124A patent/DE1158118B/en active Pending
- 1962-09-18 GB GB35490/62A patent/GB949748A/en not_active Expired
- 1962-09-18 CH CH1102562A patent/CH396101A/en unknown
-
1964
- 1964-12-12 OA OA50830A patent/OA048E/xx unknown
- 1964-12-30 OA OA51143A patent/OA01044A/en unknown
Also Published As
Publication number | Publication date |
---|---|
OA048E (en) | 1968-08-07 |
GB949748A (en) | 1964-02-19 |
FR82171E (en) | 1964-01-04 |
CH396101A (en) | 1965-07-31 |
DE1158118B (en) | 1963-11-28 |
OA01044A (en) | 1968-08-07 |
FR1308034A (en) | 1962-11-03 |