I have a new model D. I thought I would fine tune my 1 oscillator to the A 440 and found that the A 440 is actually tuned to an E note instead of an A. So then I thought I would tune it back to an A and realized that I dont know how to turn the grey tuning ports on the back of the panel. Is there a special tool I should be using?
Is it not a size 6 Torx driver. Remember don’t touch the sides as this can give you false readings.
I have no idea. On gearslutz they recomended using just a small regular screwdriver.