>From: "Aubrey McIntosh, Ph.D." <Aubrey.McIntosh@ALUMNI.UTEXAS.NET>

>Colin Constant asks:
>
>I was putting a 9 pin D-Sub connector on a board, and I got to wondering,
>how did they come up with that pin spacing?  I mean .109 by .112 is pretty
>weird even if you convert it to metric.  Anyone know how that came about?
>
>TIA
>Colin
>
>
>- -----
>Convert them to 1/64" and look again.

OK,

0.109 * 64 = 6.976
0.112 * 64 = 7.168

Sorry, I'm still not getting it.

Colin

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