JPS59188236A - ラジオ受信機 - Google Patents

ラジオ受信機

Info

Publication number
JPS59188236A
JPS59188236A JP5664684A JP5664684A JPS59188236A JP S59188236 A JPS59188236 A JP S59188236A JP 5664684 A JP5664684 A JP 5664684A JP 5664684 A JP5664684 A JP 5664684A JP S59188236 A JPS59188236 A JP S59188236A
Authority
JP
Japan
Prior art keywords
transistor
emitter
collector
radio receiver
npn
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.)
Granted
Application number
JP5664684A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6259496B2 (enrdf_load_stackoverflow
Inventor
Shigeru Goto
茂 後藤
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5664684A priority Critical patent/JPS59188236A/ja
Publication of JPS59188236A publication Critical patent/JPS59188236A/ja
Publication of JPS6259496B2 publication Critical patent/JPS6259496B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • 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
    • 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

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Noise Elimination (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
JP5664684A 1984-03-23 1984-03-23 ラジオ受信機 Granted JPS59188236A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5664684A JPS59188236A (ja) 1984-03-23 1984-03-23 ラジオ受信機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5664684A JPS59188236A (ja) 1984-03-23 1984-03-23 ラジオ受信機

Publications (2)

Publication Number Publication Date
JPS59188236A true JPS59188236A (ja) 1984-10-25
JPS6259496B2 JPS6259496B2 (enrdf_load_stackoverflow) 1987-12-11

Family

ID=13033106

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5664684A Granted JPS59188236A (ja) 1984-03-23 1984-03-23 ラジオ受信機

Country Status (1)

Country Link
JP (1) JPS59188236A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63175999U (enrdf_load_stackoverflow) * 1987-05-01 1988-11-15

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5047544A (enrdf_load_stackoverflow) * 1974-05-13 1975-04-28
JPS50146446U (enrdf_load_stackoverflow) * 1974-05-21 1975-12-04

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5047544A (enrdf_load_stackoverflow) * 1974-05-13 1975-04-28
JPS50146446U (enrdf_load_stackoverflow) * 1974-05-21 1975-12-04

Also Published As

Publication number Publication date
JPS6259496B2 (enrdf_load_stackoverflow) 1987-12-11

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