• 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.

Which 6SN7 preamp should I build?

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brightcity

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Joined 2017
I personally love the Yaqin SD-CD3 schematic. Maybe consider utilizing a led or lcd(backlight)? dvd player display for the filament rectifier?
 

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