I tried to change the bias setting to 5ma by moving the jumpers and the pre won’t turn on now. I changed them back to 4 ma and still won’t turn on! Freaking out.
- turned the power switch off
- removed the cable
- removed the left tube
- put the jumper on both pins
-put the tube back
- repeated the process for the right tube.
What possible thing could I have done to make it die like this? I made sure repeatedly to seat the tubes properly… But still nothing. Plus, I would imagine that If the tubes we not seated properly, it would still turn on and just not play…