• 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.

12AT7 Made in GDR


Paid Member
2021-04-16 4:57 pm
Dunfermline, UK
It's the first time I see a tube made in GDR. Are those good, I mean a proper 12AT7 copy?