I have an old Apple IIe CRT monitor which could use a small horizontal width adjustment. Unfortunately, as I try to rotate the hex key in the coil with a CRT adjustment tool, it doesn't want to move. Is this a common problem that's fixable?

I think I can dig up a replacement coil from another broken CRT board if I must, but, of course, I'd rather not resort to unnecessary surgery.

That also begets another question: Are these inductors pretty standard across old CRTs? I see that you can buy replacements for arcade CRTs, so I wondered if such a replacement may work as well in an Applie IIe. I suspect it's just a matter of matching coil width and number of windings roughly to ensure compatibility.

  • 3
    Mind to add information about the CR, like model and components? Some pictures about the screen and details mentioned would be perfect. – Raffzahn Jul 2 '20 at 18:45
  • It's more likely to be failing capacitors. These should be much easier to replace. – Mick Jul 3 '20 at 4:26

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