[图文]IC+分立件的RIAA电路

IC+分立件的RIAA电路

放大电路原理图

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元件的选择：

R1-18=47KR15-16-32-33=150KC12-13-25-26=100nF 100V MKTR2-19-13-29=270RR17-34=100RTR1-2=220R trimmerR3-20=1KC1-14=1uF 100V MKTD1-2-3-4=1N4148R4-5-21-22=150RC2-15=220pF  *See textQ1-2-8-9=BC214C [matched]R6-23=2K2C3-16=220pFQ3-10=BC212R7-30=82RC4-17=47nF 100V [matched]Q4-5-11-12=BC183R8-24=68KC5-18=100nF 100V MKTQ6-13=BC640R9-25=1M5C6-19=470uF 25VQ7-14=BC639R10-26=3K9C7-20=100uF 16VIC1=TL072 - NE5532R11-27=2K7C8-9-21-22=47uF 25VJ1-2-4-5=Female RCA cinchR12-28=33KC10-23=2.2uF 100V MKTJ3=3pin connector 2.54mm stepR14-31=33KC11-24=1nF 100V [matched]All Resistors is 1/4W 1% metal film