[Elecraft] Antistatic Silicon Mat?

[Ron D'Eau Claire]

Right. The mats are usually grounded directly since they have a fairly high internal resistance, while the wrist strap that features a metal contact to the user has a 1 meg resistor in series. 

73, Ron AC7AC

-----Original Message-----
From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of SteveL
Sent: Friday, January 12, 2018 12:24 PM
To: Elecraft List
Subject: Re: [Elecraft] Antistatic Silicon Mat?

Also, I believe ESD wrist straps should have something like a 1 meg ohm resistor in the ground connection to mitigate direct (and potentially fatal) shock to ground while allowing the bleed off static charge.  A direct connection to ground is hazardous!

Steve
aa8af



> On Jan 12, 2018, at 1:19 PM, Dale Chayes <dale at ldeo.columbia.edu> wrote:
> 
> 
> 
> Whatever you buy, don’t forget (the obvious, but often overlooked):
> - at least one wrist strap
> - and you have to ground the mat
> 

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