Hello! So I measured the plate voltage to 450 V. According to my calculations, I should aim for a plate current of about 41 mA. So I mount my bias probe, mount a EHX EL34 tube on top, mount the other EHX EL34 and EHX 12AX7, set my multimeter on 200m DCA, connect speaker/dummy load, turn power and wait for 15 minutes. When I adjusting the bias, I end up in a range of about 5-14 mA, and I'm aiming for 41 mA. I try both high end low output. What am I doing wrong? Thank you in advance.