This circuit has read the RIAA equalization, tone controls, and adequate gain to drive most power amplifiers conunercial by using CA3410 op amp BiMOS. Total harmonic distortion, pushed to provide an output of 6-V, is less than 0.035% in audio-frequency range from 150 Hz to 40 kHz. Full stereo preamp is to duplicate this circuit using the CA3410 remaining two amplifiers.
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