GB367982A - Circuit arrangement for remote controlled amplifiers - Google Patents

Circuit arrangement for remote controlled amplifiers

Info

Publication number
GB367982A
GB367982A GB617/31A GB61731A GB367982A GB 367982 A GB367982 A GB 367982A GB 617/31 A GB617/31 A GB 617/31A GB 61731 A GB61731 A GB 61731A GB 367982 A GB367982 A GB 367982A
Authority
GB
United Kingdom
Prior art keywords
relay
amplifier
impulse
control point
switch
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB617/31A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Publication of GB367982A publication Critical patent/GB367982A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/40—Applications of speech amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
GB617/31A 1930-01-09 1931-01-07 Circuit arrangement for remote controlled amplifiers Expired GB367982A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE622343T 1930-01-09

Publications (1)

Publication Number Publication Date
GB367982A true GB367982A (en) 1932-03-03

Family

ID=34812906

Family Applications (1)

Application Number Title Priority Date Filing Date
GB617/31A Expired GB367982A (en) 1930-01-09 1931-01-07 Circuit arrangement for remote controlled amplifiers

Country Status (4)

Country Link
DE (1) DE622343C (enrdf_load_stackoverflow)
FR (1) FR708948A (enrdf_load_stackoverflow)
GB (1) GB367982A (enrdf_load_stackoverflow)
NL (1) NL31051C (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE865913C (de) * 1941-04-19 1953-02-05 Aeg Wechselsprech-Lautsprecheranlage
DE742659C (de) * 1941-11-26 1944-11-17 Siemens Ag Schaltungsanordnung fuer Fernmeldeanlagen, insbesondere Fernsprechanlagen
DE1019217B (de) * 1953-07-27 1957-11-07 Electroacustic Gmbh Elektroakustische UEbertragungsanlage
DE1001713B (de) * 1953-12-07 1957-01-31 Telefonbau & Normalzeit Gmbh Telefonteilnehmerstation mit tastengesteuerter Frequenzwahl und einem Schichttransistoren enthaltenden Mikrophonverstaerker
DE975971C (de) * 1955-04-05 1962-12-27 Angelika Kunckel Tragbarer Fernsprechapparat mit Ortsbatterie
DE1037518B (de) * 1955-11-30 1958-08-28 Siemens Ag Verfahren zur UEberpruefung von UEbertragungsanlagen, insbesondere zur Fernmessung der Klirrdaempfung von Unterwegsverstaerkern in Traegerfrequenzsystemen
DE1034701B (de) * 1956-09-28 1958-07-24 Siemens Ag Schaltungsanordnung fuer Teilnehmerstellen in Fernmelde-, insbesondere Fernsprechanlagen, mit Tastaturwahl
DE1207494B (de) * 1958-10-27 1965-12-23 Gen Radio Co Eichgeraet zum Einstellen des Verstaerkungsgrades elektrischer Verstaerker, insbesondere fuer Schallstaerkenmessgeraete
DE1131278B (de) * 1959-12-30 1962-06-14 Siemens Ag UEberwachungsanordnung fuer Fernmelde-, insbesondere Fernsprechanlagen
DE1512811C3 (de) * 1967-04-27 1984-08-02 ANT Nachrichtentechnik GmbH, 7150 Backnang Schaltungsanordnung für die Prüfung der sprechstelleneigenen Einrichtungen in Sprechanlagen

Also Published As

Publication number Publication date
NL31051C (enrdf_load_stackoverflow)
DE622343C (de) 1935-11-27
FR708948A (fr) 1931-07-30

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