• 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.

Psvane Cv181 Tii in Icon Audio Amplifier

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I've tried that tube in a preamp and I did not like it. That was several years ago (but not the II version). It went microphonic. Probably a quality control issue. It happened after the warranty ran out so I couldn't just return it. I won't buy PSVane black treasure tubes again. Too expensive for what you get. Not what you wanted to hear I expect...

OTOH, I do like Shuguang black treasure tubes. Highly recommended! Their CV-181T is rock solid and sounds excellent.
 
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