I looked at the datasheet for both the 3kp1 and the d5-100w and the 3k has 4 of the grids but the d5 only has 3 so I'm at a loss as to why it won't work. I was playing with some resistors and managed to get a picture but it's out of focus and the pot is maxed . I even lowered the hv to the point of the pic disappearing so it may not be to much hv. I hooked this up exactly from the 3k to the d5 so It should work but if I take off g1 the screen lights up, so it's like voltage is cutting off the tube somehow. I even swapped g1 with G3 didn't help. The d5 has a jumper on pin 10 and 13 but when I put a jumper from G3 to that jumper on 10 and 13 again it lights up but it's to far out of focus. With resistors I can get it to a point of seeing what's being played but it's still out of focus. But I will say that the verticle and horizontal and size and linearity all respond the way they should I just can't get a clear pic.
