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Re: Wire gauge
"The problem is that the insulation does not have a normed size (like
the
bare wire does). This is why an AWG 26 wire can wind 58 tpi (thick
insulation) or 63 tpi (thin insulation). Best bet is to whip out your
micrometer and measure it. U"
The point should be that wire comes with many different insulation
types, of differing thickness and differing physical characteristics.
You have to know which type you are dealing with, hence the necessity of
going to the manufacturer's wire tables, particularly with fine guage
wire. For the guy who is winding coils/transformers commercially, such
information is vital. And, of course, there is manufacturing tolerance.
Ed