• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Regulate the high voltage making better sound? (Preamp)

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#21
I used regulator tubes with RC filter in phono preamplifier. There was two VR150 in series, to generate 300V regulated, and was series resistor with parallel caps to get the final 240V for the amplifier.
I see no noise, with my HP oscilloscope on the rail.

sajti
 
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