FR708948A - Coupling arrangement for remotely operated amplifiers - Google Patents

Coupling arrangement for remotely operated amplifiers

Info

Publication number
FR708948A
FR708948A FR708948DA FR708948A FR 708948 A FR708948 A FR 708948A FR 708948D A FR708948D A FR 708948DA FR 708948 A FR708948 A FR 708948A
Authority
FR
France
Prior art keywords
coupling arrangement
remotely operated
amplifiers
operated amplifiers
remotely
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
Other languages
French (fr)
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 AG
Original Assignee
Siemens and Halske AG
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
Application filed by Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR708948A publication Critical patent/FR708948A/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
FR708948D 1930-01-09 1931-01-08 Coupling arrangement for remotely operated amplifiers Expired FR708948A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR708948A true FR708948A (en) 1931-07-30

Family

ID=34812906

Family Applications (1)

Application Number Title Priority Date Filing Date
FR708948D Expired FR708948A (en) 1930-01-09 1931-01-08 Coupling arrangement for remotely operated amplifiers

Country Status (4)

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

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE865913C (en) * 1941-04-19 1953-02-05 Aeg Intercom speaker system
DE742659C (en) * 1941-11-26 1944-11-17 Siemens Ag Circuit arrangement for telecommunications systems, in particular telephone systems
DE1019217B (en) * 1953-07-27 1957-11-07 Electroacustic Gmbh Electroacoustic transmission system
DE1001713B (en) * 1953-12-07 1957-01-31 Telefonbau & Normalzeit Gmbh Telephone subscriber station with button-controlled frequency selection and a microphone amplifier containing layer transistors
DE975971C (en) * 1955-04-05 1962-12-27 Angelika Kunckel Portable telephone with local battery
DE1037518B (en) * 1955-11-30 1958-08-28 Siemens Ag Method for checking transmission systems, in particular for remote measurement of the distortion damping of on-the-go amplifiers in carrier frequency systems
DE1034701B (en) * 1956-09-28 1958-07-24 Siemens Ag Circuit arrangement for subscriber stations in telecommunications, especially telephone systems, with keypad selection
DE1207494B (en) * 1958-10-27 1965-12-23 Gen Radio Co Calibration device for setting the degree of amplification of electrical amplifiers, especially for sound strength measuring devices
DE1131278B (en) * 1959-12-30 1962-06-14 Siemens Ag Monitoring arrangement for telecommunications, in particular telephone systems
DE1512811C3 (en) * 1967-04-27 1984-08-02 ANT Nachrichtentechnik GmbH, 7150 Backnang Circuit arrangement for testing the call station's own facilities in intercom systems

Also Published As

Publication number Publication date
NL31051C (en)
GB367982A (en) 1932-03-03
DE622343C (en) 1935-11-27

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