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FR852274A - Electrical and analog wave amplifier systems - Google Patents

Electrical and analog wave amplifier systems

Info

Publication number
FR852274A
FR852274A FR852274DA FR852274A FR 852274 A FR852274 A FR 852274A FR 852274D A FR852274D A FR 852274DA FR 852274 A FR852274 A FR 852274A
Authority
FR
France
Prior art keywords
electrical
wave amplifier
amplifier systems
analog wave
analog
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR852274A publication Critical patent/FR852274A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/10—Control of transmission; Equalising by pilot signal
    • H04B3/12—Control of transmission; Equalising by pilot signal in negative-feedback path of line amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0041—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using thermistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated control
    • H03G3/04—Manually-operated control in untuned amplifiers
    • H03G3/06—Manually-operated control in untuned amplifiers having discharge tubes
    • H03G3/08—Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
FR852274D 1938-03-29 1939-03-28 Electrical and analog wave amplifier systems Expired FR852274A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US198619A US2188671A (en) 1938-03-29 1938-03-29 Wave amplifying system

Publications (1)

Publication Number Publication Date
FR852274A true FR852274A (en) 1940-01-27

Family

ID=22734105

Family Applications (1)

Application Number Title Priority Date Filing Date
FR852274D Expired FR852274A (en) 1938-03-29 1939-03-28 Electrical and analog wave amplifier systems

Country Status (4)

Country Link
US (1) US2188671A (en)
FR (1) FR852274A (en)
GB (1) GB524340A (en)
NL (1) NL55159C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR957766A (en) * 1945-06-02 1950-02-25
US2592738A (en) * 1945-09-19 1952-04-15 Us Navy Electronically controlled low impedance phase shifting device
US2567824A (en) * 1947-03-18 1951-09-11 Bell Telephone Labor Inc Automatic gain control
NL234187A (en) * 1958-12-12
US3062994A (en) * 1960-01-19 1962-11-06 Gilbert & Barker Mfg Co Electronic level sensing servosystem

Also Published As

Publication number Publication date
NL55159C (en) 1943-04-15
GB524340A (en) 1940-08-05
US2188671A (en) 1940-01-30

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