Dave VanHorn wrote:
>>
>>Actually, as I loosely determined by poking with my DMM, the
>>outer surface of the case has very low conductance, >10 Mohm.
>>However, poking the edges of holes cut thru the case, you get
>>readings around 20+ ohms. So, would seem this is like
>>1/[your ideal material]. Gradient is infinite on outer/inner
>>"surfaces" - with low Z inbetween.
>>============
>
>Well, I'm not sure what you have there is a gradient material. That would
>probably be very expensive to produce.
>One step, does not a gradient make.


WEll, actually 2 steps, one infinite [outer surface] to zero
[inside], two zero [inside] back to infinite [inner surface].
But this is just quibbling. There probably is "some" reflection
going on inside the box, but I am more than happy that the box helps
shield the analog section from the digital - as I said, low-level
analog noise drops 2-3X when the box is installed - and I seem
to recall having done some tests months ago to determine this
*is* coming from the digital insdie the box, and not from
outside sources. Unplugging chips/etc.

- DanM

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