FR1443492A - Circuit for automatic gain adjustment of low frequency amplifiers - Google Patents

Circuit for automatic gain adjustment of low frequency amplifiers

Info

Publication number
FR1443492A
FR1443492A FR20160A FR20160A FR1443492A FR 1443492 A FR1443492 A FR 1443492A FR 20160 A FR20160 A FR 20160A FR 20160 A FR20160 A FR 20160A FR 1443492 A FR1443492 A FR 1443492A
Authority
FR
France
Prior art keywords
circuit
low frequency
automatic gain
gain adjustment
frequency amplifiers
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
FR20160A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1443492A publication Critical patent/FR1443492A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
    • H03G7/08—Volume compression or expansion in amplifiers having semiconductor devices incorporating negative feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)
FR20160A 1964-06-10 1965-06-10 Circuit for automatic gain adjustment of low frequency amplifiers Expired FR1443492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT497764 1964-06-10

Publications (1)

Publication Number Publication Date
FR1443492A true FR1443492A (en) 1966-06-24

Family

ID=3570537

Family Applications (1)

Application Number Title Priority Date Filing Date
FR20160A Expired FR1443492A (en) 1964-06-10 1965-06-10 Circuit for automatic gain adjustment of low frequency amplifiers

Country Status (4)

Country Link
BE (1) BE665107A (en)
ES (1) ES313964A1 (en)
FR (1) FR1443492A (en)
NL (1) NL6507228A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2301281A1 (en) * 1972-01-11 1973-07-19 Sony Corp CIRCUIT FOR THE AUTOMATIC GAIN CONTROL
DE2323937A1 (en) * 1972-05-13 1973-11-22 Sony Corp SIGNAL CONTROL CIRCUIT

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2301281A1 (en) * 1972-01-11 1973-07-19 Sony Corp CIRCUIT FOR THE AUTOMATIC GAIN CONTROL
FR2167963A1 (en) * 1972-01-11 1973-08-24 Sony Corp
DE2323937A1 (en) * 1972-05-13 1973-11-22 Sony Corp SIGNAL CONTROL CIRCUIT

Also Published As

Publication number Publication date
ES313964A1 (en) 1965-10-01
BE665107A (en) 1965-12-08
NL6507228A (en) 1965-12-13

Similar Documents

Publication Publication Date Title
FR1462618A (en) Miniature transformer for low frequency
FR1443492A (en) Circuit for automatic gain adjustment of low frequency amplifiers
CH417992A (en) Oscillator-amplifier for magnetic recording
FR1301808A (en) Advanced loudspeaker for high frequencies
CH462894A (en) Automatic gain adjustment device of an audio amplifier
FR1390855A (en) Circuit for adjusting the gain of cascade transistorized amplifier stages
FR1322329A (en) Automatic frequency stabilization circuits
FR1507430A (en) Low frequency amplifier
FR1385252A (en) Circuit for amplifying electrical signals
AU290135B2 (en) High frequency amplifier witha transistor
CA676557A (en) Magnetic amplifier circuits
CA709961A (en) Circuit arrangement for stabilizing the operating point of an amplifier tube
CA685332A (en) Magnetic amplifier circuits
CA648409A (en) Signal amplifier circuits employing transistors
FR1527929A (en) Integrated circuit for standard amplifier
FR1410536A (en) Device for making formaldehyde by oxidation of methanol
FR1310929A (en) Circuit for stabilizing the operating point of an amplifier tube
CA679807A (en) Automatic gain ratio changing means for magnetic amplifiers
AU6070165A (en) High frequency amplifier witha transistor
CA668067A (en) Transistor amplifier circuit
FR1368277A (en) Large delay delay circuit for low frequency signals
FR1283651A (en) Stereophonic low frequency montage with sound reverberation circuit
CA658963A (en) Amplifier circuit
FR1375310A (en) terminal stage for servo amplifier
FR1505833A (en) Low frequency amplifier