Low-noise preamplifier circuit

Low-noise preamplifier circuit It shows a typical low-noise preamplifier circuit, an amplifier may be used to signal
Low-noise preamplifier circuit - schematic

the magnetic head and the microphone signal as the audio circuit. After this circuit a signal from the input terminal fed by cl coupling capacitor and filter circuit filter into low-noise preamplifier HA12Q17 I; FJ @, rear foot, the input amplifier, the output voltage amplification and amplification process by O feet amplified output signal.

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