DK545281A - Aktiv toneblaende til en to eller flertrinstransistorhoereapparatforstaerker - Google Patents
Aktiv toneblaende til en to eller flertrinstransistorhoereapparatforstaerkerInfo
- Publication number
- DK545281A DK545281A DK545281A DK545281A DK545281A DK 545281 A DK545281 A DK 545281A DK 545281 A DK545281 A DK 545281A DK 545281 A DK545281 A DK 545281A DK 545281 A DK545281 A DK 545281A
- Authority
- DK
- Denmark
- Prior art keywords
- capacitor
- resistor
- transistor
- resistance value
- amplifier stage
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 abstract 9
Classifications
-
- 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
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/02—Manually-operated control
- H03G5/04—Manually-operated control in untuned amplifiers
- H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3047691 | 1980-12-18 | ||
DE19803047691 DE3047691A1 (de) | 1980-12-18 | 1980-12-18 | "aktive tonblende fuer einen zwei- oder mehrstufigen transistor-hoergeraeteverstaerker" |
Publications (3)
Publication Number | Publication Date |
---|---|
DK545281A true DK545281A (da) | 1982-06-19 |
DK156354B DK156354B (da) | 1989-08-07 |
DK156354C DK156354C (da) | 1989-12-27 |
Family
ID=6119464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK545281A DK156354C (da) | 1980-12-18 | 1981-12-09 | Aktiv toneblaende til en to- eller flertrinstransistorhoereapparatforstaerker |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0054608B1 (da) |
AT (1) | ATE12156T1 (da) |
DE (2) | DE3047691A1 (da) |
DK (1) | DK156354C (da) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4689818A (en) * | 1983-04-28 | 1987-08-25 | Siemens Hearing Instruments, Inc. | Resonant peak control |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2289090A1 (fr) * | 1974-10-21 | 1976-05-21 | Lissac Freres | Prothese auditive a conduction chondrale |
-
1980
- 1980-12-18 DE DE19803047691 patent/DE3047691A1/de not_active Withdrawn
-
1981
- 1981-07-11 EP EP81105414A patent/EP0054608B1/de not_active Expired
- 1981-07-11 AT AT81105414T patent/ATE12156T1/de not_active IP Right Cessation
- 1981-07-11 DE DE8181105414T patent/DE3169247D1/de not_active Expired
- 1981-12-09 DK DK545281A patent/DK156354C/da not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK156354B (da) | 1989-08-07 |
EP0054608A1 (de) | 1982-06-30 |
EP0054608B1 (de) | 1985-03-13 |
ATE12156T1 (de) | 1985-03-15 |
DE3169247D1 (en) | 1985-04-18 |
DE3047691A1 (de) | 1982-07-08 |
DK156354C (da) | 1989-12-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES389354A1 (es) | Perfeccionamientos en la construccion de amplificadores de transistores de varias etapas para audifonos con regulacion de amplificacion automatica. | |
KR850008245A (ko) | 필터(filter)집적회로 | |
SE8101161L (sv) | Integrerad krets med ett flertal spenningsstromomvandlare | |
ES549659A0 (es) | Caudalometro con elemento termorresistente caliente a temperatura constante y procedimiento de contraste de dicho caudalalometro. | |
KR830006994A (ko) | 전류형 4차 능동여파기 | |
DE3575506D1 (de) | Differenzverstaerkerschaltung. | |
KR850006275A (ko) | 이득 제어 증폭기 | |
DK545281A (da) | Aktiv toneblaende til en to eller flertrinstransistorhoereapparatforstaerker | |
KR880701044A (ko) | 정확한 가변이득 제어기능을 갖고 있는 캐스케이드식 내부 임피던스 종속 증폭기 | |
KR830008247A (ko) | 레벨검출회로 | |
KR830009689A (ko) | 신호레벨 제어회로 | |
FI874606A0 (fi) | Tonkontrollsystem foer sampeldatasignaler. | |
ES8301400A1 (es) | Una disposicion de circuito con una caracteristica de trans-ferencia controlable,especificamente un circuito de control de tono o de volumen | |
GB1161002A (en) | Improvements in and relating to Hearing Aids | |
SE7612345L (sv) | Integrerad motkopplad forsterkare | |
KR920022883A (ko) | 복수의 시상수 신호 제어 장치 | |
DE3381276D1 (de) | Schaltungsanordnung zur lautstaerkestellung. | |
KR930015711A (ko) | 비디오 카메라의 마이크로폰 신호 회로 | |
KR900018528A (ko) | 광 연소 모니터용 프로세스 회로 | |
SU372645A1 (ru) | §О?СОЮЗНАЯfpyiHp. | |
GB936629A (en) | Improvements in and relating to amplifiers employing transistors | |
JPS5733812A (en) | Transistor amplifier | |
JPS5713810A (en) | Monostable multivibrator | |
SU663115A2 (ru) | Переменный корректор затуханий | |
GB1243246A (en) | Volume controller |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PBP | Patent lapsed |