JPS62129819U - - Google Patents

Info

Publication number
JPS62129819U
JPS62129819U JP1748786U JP1748786U JPS62129819U JP S62129819 U JPS62129819 U JP S62129819U JP 1748786 U JP1748786 U JP 1748786U JP 1748786 U JP1748786 U JP 1748786U JP S62129819 U JPS62129819 U JP S62129819U
Authority
JP
Japan
Prior art keywords
amplifier circuit
switch
resistor
input terminal
cartridge
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
JP1748786U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP1748786U priority Critical patent/JPS62129819U/ja
Publication of JPS62129819U publication Critical patent/JPS62129819U/ja
Pending legal-status Critical Current

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  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係るイコライザー回路の一実
施例を示す回路図、第２図、第３図は従来のイコ
ライザー回路を示す回路例である。 Ａｍｐ．１：ＭＭカートリツジ用増幅回路、Ａ
ｍｐ．２：ＭＣカートリツジ用増幅回路、Ｒ１，
Ｒ２：抵抗、Ｓ１１―ａ，Ｓ１１―ｂ：切換えス
イツチ。 FIG. 1 is a circuit diagram showing one embodiment of an equalizer circuit according to the present invention, and FIGS. 2 and 3 are circuit examples showing conventional equalizer circuits. Amp. 1: Amplifier circuit for MM cartridge, A
mp. 2: MC cartridge amplifier circuit, R1,
R2: Resistor, S11-a, S11-b: Changeover switch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ＭＭカートリツジ用の第１の増幅回路と、ＭＣ
カートリツジ用の第２の増幅回路と、前記第１の
増幅回路の入力端と前記第２の増幅回路の入力端
との間に接続された第１の抵抗と、前記第１の抵
抗に並列に接続された第１のスイツチと、前記第
２の増幅回路の入力端と接地間に接続された第２
の抵抗と、前記第１または第２の増幅回路のいず
れか一方の出力を選択する第２のスイツチとを有
し、前記第１のスイツチにより前記第１の抵抗を
短絡したとき、前記第２のスイツチにより前記第
２の増幅回路からの出力を選択することを特徴と
するイコライザー回路。 A first amplifier circuit for MM cartridge and MC
a second amplifier circuit for a cartridge; a first resistor connected between an input terminal of the first amplifier circuit and an input terminal of the second amplifier circuit; and a first resistor connected in parallel to the first resistor. a first switch connected to the switch, and a second switch connected between the input terminal of the second amplifier circuit and ground.
and a second switch that selects the output of either the first or second amplifier circuit, and when the first switch short-circuits the first resistor, the second An equalizer circuit characterized in that the output from the second amplifier circuit is selected by a switch.
JP1748786U 1986-02-12 1986-02-12 Pending JPS62129819U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1748786U JPS62129819U (en) 1986-02-12 1986-02-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1748786U JPS62129819U (en) 1986-02-12 1986-02-12

Publications (1)

Publication Number Publication Date
JPS62129819U true JPS62129819U (en) 1987-08-17

Family

ID=30810292

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1748786U Pending JPS62129819U (en) 1986-02-12 1986-02-12

Country Status (1)

Country Link
JP (1) JPS62129819U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06249680A (en) * 1993-02-23 1994-09-09 Graphtec Corp Input device for recording signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06249680A (en) * 1993-02-23 1994-09-09 Graphtec Corp Input device for recording signal

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