- Oct 3, 2007
I finished building my Minimax, and is just trying to bias all the stuff at the moment. The tube bias is giving me some problem. diyforums says that the prefered range for the tube voltage from the 2 test points are each supposed to be half the powersupply (~12-14V)but mine is at 21V with my RA1(L&R) trim pots all the way closed. I tried moving the trim pot and stuff wiht no success. the voltage is not moving anywhere.