CH422900A - Sprechkapsel mit Transistorverstärker - Google Patents

Sprechkapsel mit Transistorverstärker

Info

Publication number
CH422900A
CH422900A CH1113565A CH1113565A CH422900A CH 422900 A CH422900 A CH 422900A CH 1113565 A CH1113565 A CH 1113565A CH 1113565 A CH1113565 A CH 1113565A CH 422900 A CH422900 A CH 422900A
Authority
CH
Switzerland
Prior art keywords
transistor amplifier
speech capsule
speech
capsule
amplifier
Prior art date
Application number
CH1113565A
Other languages
English (en)
Inventor
Hoppe Hans
Schramm Karl
Original Assignee
Krone Kg
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 Krone Kg filed Critical Krone Kg
Publication of CH422900A publication Critical patent/CH422900A/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • 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
    • 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
    • H04M1/62—Constructional arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/04—Structural association of microphone with electric circuitry therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/08—Microphones
CH1113565A 1964-09-19 1965-08-09 Sprechkapsel mit Transistorverstärker CH422900A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1964K0054050 DE1277353B (de) 1964-09-19 1964-09-19 Sprechkapsel mit Transistorverstaerker

Publications (1)

Publication Number Publication Date
CH422900A true CH422900A (de) 1966-10-31

Family

ID=7226954

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1113565A CH422900A (de) 1964-09-19 1965-08-09 Sprechkapsel mit Transistorverstärker

Country Status (6)

Country Link
CH (1) CH422900A (de)
DE (1) DE1277353B (de)
DK (1) DK113299B (de)
FI (1) FI44126B (de)
NL (1) NL141351B (de)
SE (1) SE324811B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2948034A1 (de) * 1979-11-29 1981-06-11 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Elektro-akustischer wandler mit zur verbesserung des frequenzverlaufes vorgesehenen resonanzraeumen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1744861U (de) * 1957-02-25 1957-05-16 Holmberg & Co Dynamische oder magnetische mikrophonkapsel mit transistorverstaerker.
DE1826653U (de) * 1959-03-19 1961-02-16 Krone Kg Sprechkapsel mit transistorverstaerker.
DE1175280B (de) * 1963-03-15 1964-08-06 Siemens Ag Elektroakustischer Wandler mit Transistorverstaerker und Verfahren zu seiner Herstellung

Also Published As

Publication number Publication date
FI44126B (de) 1971-06-01
SE324811B (de) 1970-06-15
NL141351B (nl) 1974-02-15
DK113299B (da) 1969-03-10
NL6510666A (de) 1966-03-21
DE1277353B (de) 1968-09-12

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