KR850005222U - Volume control circuit using DC motor - Google Patents

Volume control circuit using DC motor

Info

Publication number
KR850005222U
KR850005222U KR2019830011059U KR830011059U KR850005222U KR 850005222 U KR850005222 U KR 850005222U KR 2019830011059 U KR2019830011059 U KR 2019830011059U KR 830011059 U KR830011059 U KR 830011059U KR 850005222 U KR850005222 U KR 850005222U
Authority
KR
South Korea
Prior art keywords
motor
control circuit
volume control
volume
circuit
Prior art date
Application number
KR2019830011059U
Other languages
Korean (ko)
Other versions
KR850002486Y1 (en
Inventor
강근석
Original Assignee
주식회사금성사
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 주식회사금성사 filed Critical 주식회사금성사
Priority to KR2019830011059U priority Critical patent/KR850002486Y1/en
Publication of KR850005222U publication Critical patent/KR850005222U/en
Application granted granted Critical
Publication of KR850002486Y1 publication Critical patent/KR850002486Y1/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H03G7/004—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers using continuously variable impedance 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Adjustable Resistors (AREA)
KR2019830011059U 1983-12-24 1983-12-24 Volume control circuit using d.c.motor KR850002486Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019830011059U KR850002486Y1 (en) 1983-12-24 1983-12-24 Volume control circuit using d.c.motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019830011059U KR850002486Y1 (en) 1983-12-24 1983-12-24 Volume control circuit using d.c.motor

Publications (2)

Publication Number Publication Date
KR850005222U true KR850005222U (en) 1985-08-07
KR850002486Y1 KR850002486Y1 (en) 1985-10-19

Family

ID=70160789

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019830011059U KR850002486Y1 (en) 1983-12-24 1983-12-24 Volume control circuit using d.c.motor

Country Status (1)

Country Link
KR (1) KR850002486Y1 (en)

Also Published As

Publication number Publication date
KR850002486Y1 (en) 1985-10-19

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19911008

Year of fee payment: 7

LAPS Lapse due to unpaid annual fee