NL145738B - Schakeling voor een microfoonversterker. - Google Patents

Schakeling voor een microfoonversterker.

Info

Publication number
NL145738B
NL145738B NL6918399A NL6918399A NL145738B NL 145738 B NL145738 B NL 145738B NL 6918399 A NL6918399 A NL 6918399A NL 6918399 A NL6918399 A NL 6918399A NL 145738 B NL145738 B NL 145738B
Authority
NL
Netherlands
Prior art keywords
circuit
microphone amplifier
microphone
amplifier
Prior art date
Application number
NL6918399A
Other languages
English (en)
Dutch (nl)
Other versions
NL6918399A (OSRAM
Original Assignee
Siemens Ag
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
Priority claimed from DE19681815174 external-priority patent/DE1815174C/de
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of NL6918399A publication Critical patent/NL6918399A/xx
Publication of NL145738B publication Critical patent/NL145738B/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
    • 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
    • H03F3/187—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only in integrated circuits
    • 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
    • H03F3/347—DC amplifiers in which all stages are DC-coupled with semiconductor devices only in integrated circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6008—Substation equipment, e.g. for use by subscribers including speech amplifiers in the transmitter circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
NL6918399A 1968-12-17 1969-12-08 Schakeling voor een microfoonversterker. NL145738B (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19681815173 DE1815173B1 (de) 1968-12-17 1968-12-17 Schaltungsanordnung fuer Fernsprechmikrofonverstaerker
DE19681815174 DE1815174C (de) 1968-12-17 Fernsprechmikrofonverstarker mit ver starkerausgangsseitiger Speisung

Publications (2)

Publication Number Publication Date
NL6918399A NL6918399A (OSRAM) 1970-06-19
NL145738B true NL145738B (nl) 1975-04-15

Family

ID=25756604

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6918399A NL145738B (nl) 1968-12-17 1969-12-08 Schakeling voor een microfoonversterker.

Country Status (11)

Country Link
JP (1) JPS5113962B1 (OSRAM)
AT (1) AT296403B (OSRAM)
BE (1) BE743283A (OSRAM)
BG (1) BG20634A3 (OSRAM)
CH (1) CH512862A (OSRAM)
DE (1) DE1815173B1 (OSRAM)
FR (1) FR2026348A1 (OSRAM)
GB (1) GB1244548A (OSRAM)
LU (1) LU60014A1 (OSRAM)
NL (1) NL145738B (OSRAM)
SE (1) SE346190B (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8004675A (nl) * 1980-08-19 1982-03-16 Philips Nv Signaalbufferschakeling in een geintegreerde schakeling voor het leveren van een uitgangssignaal aan een aansluitklem.

Also Published As

Publication number Publication date
LU60014A1 (OSRAM) 1970-02-16
SE346190B (OSRAM) 1972-06-26
CH512862A (de) 1971-09-15
JPS5113962B1 (OSRAM) 1976-05-06
DE1815173B1 (de) 1970-08-20
DE1815174B2 (OSRAM) 1970-10-29
GB1244548A (en) 1971-09-02
BG20634A3 (bg) 1975-12-05
BE743283A (OSRAM) 1970-06-17
AT296403B (de) 1972-02-10
FR2026348A1 (OSRAM) 1970-09-18
NL6918399A (OSRAM) 1970-06-19
DE1815174A1 (de) 1970-06-18

Similar Documents

Publication Publication Date Title
NL161632C (nl) Operationele versterker.
NL158665B (nl) Versterker.
NL139802B (nl) Turbine voor een compressibel medium.
NL177788C (nl) Besturingsschakeling voor een vermogensversterker.
NL148206B (nl) Geometrische stroomversterker.
FI45913C (fi) Vahvistinkytkentä.
NL161005C (nl) Versterkerschakeling.
NL159796B (nl) Coronalaadinrichting voor een xerografisch reproduktietoe- stel.
NL187878C (nl) Beveiligingsschakeling voor een transistorversterker.
NL164714C (nl) Versterker.
NL165985C (nl) Tussendekelementen voor een scheepsruim.
DK134090B (da) Forstærkerapparat til et telefonapparat.
NL158696B (nl) Adembuis voor een pneumotachograaf.
NL161004C (nl) Stroomversterker.
NO139285C (no) Forsterkerkrets.
NL145738B (nl) Schakeling voor een microfoonversterker.
DK122488B (da) Forstærker.
NL159546B (nl) Versterkerschakeling.
NL143766B (nl) Schakeling voor het bekrachtigen van een zelfinductie.
NL149661B (nl) Luidsprekend telefoontoestel.
DK126216B (da) Læseapparat til mikrooptegnelser.
NL156880B (nl) Microfoonversterker voor een telefoontoestel.
NL149920B (nl) Inrichting voor gesproken tijdmelding.
NL152142B (nl) Lijnversterker.
NL171853C (nl) Versterkerinrichting.