A low-noise integrated circuit was added and the preamplifier was made in the stereo mode. This amp is without RIAA correction. The power supply runs from 10 - 30 VDC maximum, stabilized. The current absorption is typically 5mA, amplification can be upto 40dB, frequency range runs from 40Hz through 30KHz for 3dB settings. The output impedance is 1KOhm and the maximum input signal is 50mV.
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