JPS5555610A - Adjusting circuit for frequency characteristic - Google Patents

Adjusting circuit for frequency characteristic

Info

Publication number
JPS5555610A
JPS5555610A JP12919878A JP12919878A JPS5555610A JP S5555610 A JPS5555610 A JP S5555610A JP 12919878 A JP12919878 A JP 12919878A JP 12919878 A JP12919878 A JP 12919878A JP S5555610 A JPS5555610 A JP S5555610A
Authority
JP
Japan
Prior art keywords
resistor
gain
frequency characteristics
input
input terminal
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.)
Pending
Application number
JP12919878A
Other languages
Japanese (ja)
Inventor
Kenji Yokoyama
Seiji Honda
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.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki 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 Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Priority to JP12919878A priority Critical patent/JPS5555610A/en
Publication of JPS5555610A publication Critical patent/JPS5555610A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

PURPOSE:To enable effective adjustment for the gain and frequency characteristics, by changing the gain between the input and output terminal through the adjustment of variable resistor, adjusting the parameter of the filter circuit and changing the variable range of the frequency characteristics between the input and output terminals. CONSTITUTION:The inverting input terminal of the operational amplifier 10 is connected to the input terminal 15 via the resistor 14 and to the output terminal via the resistor 16. Similarly, the inverting input terminal of the operational amplifier 11 is connected to the amplifier 10 via the resistor 17 and to the output terminal via the resistor 17. On the other hand, the neutral point of the variable resistor 12 is grounded and the stator is connected to the input terminal of the amplifiers 1 and 2. The resistor 12 is adjusted to change the gain between the input ans output terminals, the parameter of the filter circuit 13 is adjusted and the variable range of the frequency characteristics between the terminals 15 and 18 is changed. Thus, the gain and the frequency characteristics can effectively be adjusted.
JP12919878A 1978-10-20 1978-10-20 Adjusting circuit for frequency characteristic Pending JPS5555610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12919878A JPS5555610A (en) 1978-10-20 1978-10-20 Adjusting circuit for frequency characteristic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12919878A JPS5555610A (en) 1978-10-20 1978-10-20 Adjusting circuit for frequency characteristic

Publications (1)

Publication Number Publication Date
JPS5555610A true JPS5555610A (en) 1980-04-23

Family

ID=15003557

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12919878A Pending JPS5555610A (en) 1978-10-20 1978-10-20 Adjusting circuit for frequency characteristic

Country Status (1)

Country Link
JP (1) JPS5555610A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4305863B4 (en) * 1992-02-27 2004-04-15 Orban, Inc. (n.d.Ges.d. Staates Delaware), San Francisco equalizer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4305863B4 (en) * 1992-02-27 2004-04-15 Orban, Inc. (n.d.Ges.d. Staates Delaware), San Francisco equalizer

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