RO80600B1 - Device for automatically checking the 7 a2-type decimal transmitter circuit in the pentaconta telephone exchange - Google Patents

Device for automatically checking the 7 a2-type decimal transmitter circuit in the pentaconta telephone exchange

Info

Publication number
RO80600B1
RO80600B1 RO84611A RO8461176A RO80600B1 RO 80600 B1 RO80600 B1 RO 80600B1 RO 84611 A RO84611 A RO 84611A RO 8461176 A RO8461176 A RO 8461176A RO 80600 B1 RO80600 B1 RO 80600B1
Authority
RO
Romania
Prior art keywords
pentaconta
transmitter circuit
telephone exchange
automatically checking
type decimal
Prior art date
Application number
RO84611A
Other languages
Romanian (ro)
Other versions
RO80600A2 (en
Inventor
Minola Sparlac
Andrei Anca
Calin Voiculescu
Original Assignee
Directia De Telecomunicatii Municipiul Bucuresti
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 Directia De Telecomunicatii Municipiul Bucuresti filed Critical Directia De Telecomunicatii Municipiul Bucuresti
Priority to RO84611A priority Critical patent/RO80600B1/en
Publication of RO80600A2 publication Critical patent/RO80600A2/en
Publication of RO80600B1 publication Critical patent/RO80600B1/en

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  • Interface Circuits In Exchanges (AREA)

Abstract

Inventia se refera la o rama cu circuite statice de tonuri, apeluri, cadente si tensiuni destinata alimentarii centralelor telefonice automate. Rama este alcatuita dintr-un generator static de tensiune sinusoidala de mare putere format din doua amplificatoare identice cu un etaj de iesire cvasicomplementar prevazut cu o reactie negativa si o rezistenta de iesire mica, absolut necesara pentru generatoarele care lucreaza cu sarcina variabila.The invention relates to a frame with static circuits of tones, calls, cadences and voltages intended for powering automatic telephone exchanges. The frame consists of a high-power static high voltage generator consisting of two identical amplifiers with a quasi-complementary output stage provided with a negative reaction and a small output resistance, absolutely necessary for the variable load generator.

RO84611A 1976-01-24 1976-01-24 Device for automatically checking the 7 a2-type decimal transmitter circuit in the pentaconta telephone exchange RO80600B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO84611A RO80600B1 (en) 1976-01-24 1976-01-24 Device for automatically checking the 7 a2-type decimal transmitter circuit in the pentaconta telephone exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO84611A RO80600B1 (en) 1976-01-24 1976-01-24 Device for automatically checking the 7 a2-type decimal transmitter circuit in the pentaconta telephone exchange

Publications (2)

Publication Number Publication Date
RO80600A2 RO80600A2 (en) 1984-01-14
RO80600B1 true RO80600B1 (en) 1984-01-30

Family

ID=20095719

Family Applications (1)

Application Number Title Priority Date Filing Date
RO84611A RO80600B1 (en) 1976-01-24 1976-01-24 Device for automatically checking the 7 a2-type decimal transmitter circuit in the pentaconta telephone exchange

Country Status (1)

Country Link
RO (1) RO80600B1 (en)

Also Published As

Publication number Publication date
RO80600A2 (en) 1984-01-14

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