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[RIAA Pre-Amplifier ] Analog Metric FEATURES Voltage Gain 36dB. Input sensitivity 350mV Use of very low distortion high quality audio OPAMPAD797, 0.9nV at 1kHz typical and -120dB THD at 20kHz. Symmetric PCB design for both R and L channels. Implemented with WIMA, Nichicon capacitors and Dale resistors.
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[RIAA Pre-Amplifier ] Analog Metric PROCEDURES 1. Solder the components according to the part list. Notice the polarities of the electrolytic capacitors CP1-4 and CP1B-4B. There is no polarity of the thin film capacitors. 2. Apply DC voltage +15V and -15V to connector labeled with VCC and VCC-, respectively, without plug in the opamp U1 and U2.
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