'66 Admiral Convergence

[ihmeyers]

I am trying to tweak the convergence on my Admiral. I have it looking pretty good though I can't seem to get it right on anymore than about 65% of the screen. I'd like to adjust the 4 sets of pots (left, right, top and bottom) but there is one set that I need a special tool for. The other 3 sets have pots with knobs I can turn, but the fourth set looks like coils, not pots and requires a special tool. Does anyone know what kind of tool it needs and where i can get it?

Thanks!