• 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.

Phono Preamp

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Good afternoon,


I am looking to build a phono preamp. At this time I have some Siemens C3g and C3m tubes and 3 - NOS RFT ECC82 tubes.


Does anyone have some suggustions on a somewhat simple design that would work with the tubes that I have?


Will high or low voltage designs work better? I see some 12AU7/ECC82 powered by batteries. Could I just step down 115v or use a laptop power supply or is high voltage better?


Thanks
Brian
 
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