Phono Tube Preamp Schematic

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Spice and the art of preamplifier design, Part 2

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Phono tube riaa amplifier preamp 12ax7 circuit schematics audio stage mm diy kit transistor power turntables ecc83 hifi noise board .

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Spice and the art of preamplifier design, Part 2

Tube Phono Pre-amp

New tube Phono preamp, hiss-like noise and crackling on left channel