Tube Phono Preamp Schematic
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New tube Phono preamp, hiss-like noise and crackling on left channel
Borbely RIAA Preamp With Tubes - A Project Remembered and Revisited
Is this a good phono preamp circuit to build? - diyAudio
HiFi MM RIAA Phono Stage Preamp Turntable Amplifier DIY Kit Ref EAR834
Spice and the art of preamplifier design, Part 2