6+5=11V
how do you check polarity
The two 6.3 taps are being used already one for the tube power supply board and the other for the preamp board ,
i was going to splice into them for the mvo4
i can,t tie into the two 6.3 taps
I am getting an annoying hum still.
here is the schematics of the power supply and the preamp
this how my grounds are know