>So let's see if I understand this... > >If I have a .050" core, .025" inner wrap and .075" outer wrap (25:75 = >1:3) then I get >something like > >.050" + 2 * .95 * (.025" + .075") = .240" > >Yes? Yes, that's it. There's plenty of wiggle room to accommodate available wire sizes that don't fall exactly on the 1:3 ratio, but that's the basic approach I use. I'm sure there are others, better or worse. Ron N
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