Radio Shack ESD mat doesn't meet spec

Posted by Mike Morrow-3 on Mar 28, 2010; 6:45pm
URL: http://elecraft.85.s1.nabble.com/Radio-Shack-ESD-mat-doesn-t-meet-spec-tp4814364.html

Gary Hvizdak wrote:

> You can read the full text of Alan's post in the Reflector archives at
> http://mailman.qth.net/pipermail/elecraft/2008-February/083794.html

Fred wrote:

>Ingenious test set up Alan used to measure 1.0E10 ohms.

I must be missing something in the test description.  Wouldn't the
very low internal resistance of the Simpson voltmeter grossly swamp
the effects of the very high resistance of the mat?  Even the input
resistance of a VTVM would be very low compared to the resistance
that is to be measured (even if measurement is only periodically
made on the circuit).

Mike / KK5F



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