• 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.

BAT vk150

Hello, does anyone know what bias voltage should be adjusted for the vk150 bat stage and how to do it?
I have had problems with a pop-pop noise on the right channel I have changed all the capacitors and it continues to make the noise sometimes it is very difficult for me to locate
I can't check my 6c33s with my test tube either.
Cheers