Olin Lathrop wrote:
>
> > The new question then is how to figure out the resistance
> > of a PCB trace.

> The board house should be able to spec the copper thickness, usually in
> "ounces", which can be translated to ohm/square after some figuring.


I picked up a nice little freeware program
called "PCBtemp" which calculates voltage drop
and temp rise of a PCB trace once you input
current, length, trace thickness etc. You will
also need to know the copper thickness and
whether it is tinned or not too.
-Roman

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