FR1381174A - Variable impedance device, fitted with transistors and intended for automatic gain adjustment circuits - Google Patents

Variable impedance device, fitted with transistors and intended for automatic gain adjustment circuits

Info

Publication number
FR1381174A
FR1381174A FR962560A FR962560A FR1381174A FR 1381174 A FR1381174 A FR 1381174A FR 962560 A FR962560 A FR 962560A FR 962560 A FR962560 A FR 962560A FR 1381174 A FR1381174 A FR 1381174A
Authority
FR
France
Prior art keywords
transistors
fitted
intended
automatic gain
gain adjustment
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
FR962560A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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
Priority claimed from US256846A external-priority patent/US3264564A/en
Application filed by RCA Corp, Radio Corporation of America filed Critical RCA Corp
Priority to FR962560A priority Critical patent/FR1381174A/en
Application granted granted Critical
Publication of FR1381174A publication Critical patent/FR1381174A/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
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3063—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver using at least one transistor as controlling device, the transistor being used as a variable impedance device
    • 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
    • H03G1/0082—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using bipolar transistor-type devices
FR962560A 1963-02-07 1964-02-04 Variable impedance device, fitted with transistors and intended for automatic gain adjustment circuits Expired FR1381174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR962560A FR1381174A (en) 1963-02-07 1964-02-04 Variable impedance device, fitted with transistors and intended for automatic gain adjustment circuits

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US256846A US3264564A (en) 1963-02-07 1963-02-07 Variable impedance device for transistor automatic gain control
FR962560A FR1381174A (en) 1963-02-07 1964-02-04 Variable impedance device, fitted with transistors and intended for automatic gain adjustment circuits

Publications (1)

Publication Number Publication Date
FR1381174A true FR1381174A (en) 1964-12-04

Family

ID=26205708

Family Applications (1)

Application Number Title Priority Date Filing Date
FR962560A Expired FR1381174A (en) 1963-02-07 1964-02-04 Variable impedance device, fitted with transistors and intended for automatic gain adjustment circuits

Country Status (1)

Country Link
FR (1) FR1381174A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097201A1 (en) * 1982-06-22 1984-01-04 Telefongyar Frequency selective amplifier with gain control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097201A1 (en) * 1982-06-22 1984-01-04 Telefongyar Frequency selective amplifier with gain control

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