[Elecraft] easy source of static dissipating work mat?

[David Woolley (E.L)]

Matt Palmer wrote:
> A ESD bag and a mat are 2 different animals, a ESD bag (silver)
> creates a faraday shield around the object protecting it from esd

There are two types of ESD bag, and I think that Elecraft use the pink 
ones, which are very high resistance and do not generate a charge with 
friction.

I believe the silvered ones do work like mats.

Also, when measuring resistance, you need to make a line contact, not a 
point contact.  Two ideal point contacts will result in an infinite 
resistance.  I'm fairly sure that two circular contacts, produced with 
the same probe and pressure will not produce a constant resistance, but 
will actually scale with separation in the expected way.

> (think tinfoil) an esd mat is a relatively high Z conductor designed
> to bleed off charge as to avoid arcing (think rub feet on carpet and
> touch doornob.) there are also pink 'esd' bags that are not shelded
> but are simply made of a plastic which will not generate static
> electricity. A ESD bag is not a suitable replacement for a mat.

-- 
David Woolley
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