JPS55134516A - Equalizer amplifier - Google Patents

Equalizer amplifier

Info

Publication number
JPS55134516A
JPS55134516A JP4236479A JP4236479A JPS55134516A JP S55134516 A JPS55134516 A JP S55134516A JP 4236479 A JP4236479 A JP 4236479A JP 4236479 A JP4236479 A JP 4236479A JP S55134516 A JPS55134516 A JP S55134516A
Authority
JP
Japan
Prior art keywords
frequency range
circuit
equalizer
stage
emitter
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
JP4236479A
Other languages
Japanese (ja)
Other versions
JPS6211527B2 (en
Inventor
Kikuo Ishikawa
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP4236479A priority Critical patent/JPS55134516A/en
Publication of JPS55134516A publication Critical patent/JPS55134516A/en
Publication of JPS6211527B2 publication Critical patent/JPS6211527B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response

Abstract

PURPOSE:To form a CR type equalizer amplifier large in the allowable input of a high frequency range by connecting an amplification stage to an emitter-follower stage and a load circuit of filtering circuit of fixed frequency characteristics to the emitter-follower-stage output side respectively. CONSTITUTION:Amplification stage 12 composed of transistor Q1 and emitter follower stage 13 of TRQ2 are cascaded so as to form an equalizer amplifier. Then, load circuit 1a with fixed frequency characteristics is connected to the collector of TRQ1 to form an equalizer circuit for the low frequency range. To the collector of TRQ2, filtering circuit 1b having fixed frequency characteristics is connected so as to form an equalizer for the high frequency range. Here, this total response characteristics are RIAA characteristics. Thus, the equalizing circuit for the low frequency range is formed to make possible an increase in the allowable input of the high frequency range.
JP4236479A 1979-04-07 1979-04-07 Equalizer amplifier Granted JPS55134516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4236479A JPS55134516A (en) 1979-04-07 1979-04-07 Equalizer amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4236479A JPS55134516A (en) 1979-04-07 1979-04-07 Equalizer amplifier

Publications (2)

Publication Number Publication Date
JPS55134516A true JPS55134516A (en) 1980-10-20
JPS6211527B2 JPS6211527B2 (en) 1987-03-13

Family

ID=12633974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4236479A Granted JPS55134516A (en) 1979-04-07 1979-04-07 Equalizer amplifier

Country Status (1)

Country Link
JP (1) JPS55134516A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115213A (en) * 1989-06-30 1992-05-19 Sony Corporation Frequency equalizer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115213A (en) * 1989-06-30 1992-05-19 Sony Corporation Frequency equalizer

Also Published As

Publication number Publication date
JPS6211527B2 (en) 1987-03-13

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