AT38863B - Circuit for telephone systems with voice power amplifier. - Google Patents

Circuit for telephone systems with voice power amplifier.

Info

Publication number
AT38863B
AT38863B AT38863DA AT38863B AT 38863 B AT38863 B AT 38863B AT 38863D A AT38863D A AT 38863DA AT 38863 B AT38863 B AT 38863B
Authority
AT
Austria
Prior art keywords
circuit
power amplifier
current amplifier
relay
telephone systems
Prior art date
Application number
Other languages
German (de)
Original Assignee
Zwietusch E & Co Gmbh
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 Zwietusch E & Co Gmbh filed Critical Zwietusch E & Co Gmbh
Application granted granted Critical
Publication of AT38863B publication Critical patent/AT38863B/en

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Description

  

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Claims (1)

<Desc/Clms Page number 5> Leitungsabschnitte auf den Empfänger des Sprechstromveratärkera ausüben, unabhängig von dem elektrischen Zustande der Leitungsabschnitte lediglich durch Verändern der Empfindlichkeit des Sprechstromverstärkers, und zwar entweder auf der Empfänger-oder der Senderseite, beseitigen zu können. <Desc / Clms Page number 5> Exercise line sections on the receiver of the Speechstromveratärkera, regardless of the electrical condition of the line sections can only be eliminated by changing the sensitivity of the Speech Current Amplifier, either on the receiver or the transmitter side. 5. Schaltung nach Anspruch 1-3, bei der der Sprechstromverstärker in einem zur Verbindung von Leitungen dienenden Schnursystem angeordnet ist, dadurch gekennzeichnet, dass der den Sender (d) des Sprechstromverstärkers enthaltende Stromkreis (14) durch ein Relais (r) geschlossen wird, das erst bei Herstellung der Verbindung zwischen der ankommenden Leitung (z. B. 2, 3) mit dem Schnursystem erregt wird, während die Schliessung des die sekundäre Wick- lung (s SI) der Induktionsspule (i) enthaltenden Stromkreises durch dasselbe Relais (r) oder ein Relais (1'1) erfolgt, das erst bei Herstellung der Verbindung zwischen der abgehenden Leitung (2, 3) mit dem Schnursystem erregt wird. 5. Circuit according to claims 1-3, in which the voice current amplifier is arranged in a cord system used to connect lines, characterized in that the circuit (14) containing the transmitter (d) of the voice current amplifier is closed by a relay (r), which is only excited when the connection between the incoming line (e.g. 2, 3) and the cord system is established, while the circuit containing the secondary winding (s SI) of the induction coil (i) is closed by the same relay (r ) or a relay (1'1) takes place, which is only excited when the connection between the outgoing line (2, 3) and the cord system is established.
AT38863D 1908-07-30 1908-07-30 Circuit for telephone systems with voice power amplifier. AT38863B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT38863T 1908-07-30

Publications (1)

Publication Number Publication Date
AT38863B true AT38863B (en) 1909-09-10

Family

ID=3556759

Family Applications (1)

Application Number Title Priority Date Filing Date
AT38863D AT38863B (en) 1908-07-30 1908-07-30 Circuit for telephone systems with voice power amplifier.

Country Status (1)

Country Link
AT (1) AT38863B (en)

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