DK545281A - Aktiv toneblaende til en to eller flertrinstransistorhoereapparatforstaerker - Google Patents

Aktiv toneblaende til en to eller flertrinstransistorhoereapparatforstaerker

Info

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
Application number
DK545281A
Other languages
English (en)
Other versions
DK156354B (da
DK156354C (da
Inventor
B Jerichow
Original Assignee
Bosch R
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bosch R filed Critical Bosch R
Publication of DK545281A publication Critical patent/DK545281A/da
Publication of DK156354B publication Critical patent/DK156354B/da
Application granted granted Critical
Publication of DK156354C publication Critical patent/DK156354C/da

Links

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)
DK545281A 1980-12-18 1981-12-09 Aktiv toneblaende til en to- eller flertrinstransistorhoereapparatforstaerker DK156354C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803047691 DE3047691A1 (de) 1980-12-18 1980-12-18 "aktive tonblende fuer einen zwei- oder mehrstufigen transistor-hoergeraeteverstaerker"
DE3047691 1980-12-18

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2289090A1 (fr) * 1974-10-21 1976-05-21 Lissac Freres Prothese auditive a conduction chondrale

Also Published As

Publication number Publication date
DE3169247D1 (en) 1985-04-18
EP0054608B1 (de) 1985-03-13
DE3047691A1 (de) 1982-07-08
DK156354B (da) 1989-08-07
DK156354C (da) 1989-12-27
EP0054608A1 (de) 1982-06-30
ATE12156T1 (de) 1985-03-15

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
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
DK513881A (da) Kobling til dynamik-kompression og eller ekspansion
SE7612345L (sv) Integrerad motkopplad forsterkare
KR920022883A (ko) 복수의 시상수 신호 제어 장치
SU754435A1 (ru) Аналоговый четырехквадрантный умножитель 1
DE3381276D1 (de) Schaltungsanordnung zur lautstaerkestellung.
KR930015711A (ko) 비디오 카메라의 마이크로폰 신호 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