[Elecraft] K3 ESD

david m dmacchiarolo at triad.rr.com
Sat Dec 18 19:37:17 EST 2010


Yes. If you are using a commercially available wrist strap, the 1M
resistor is built in.  An anti-static mat will also have a surface
resistivity of at least 1Mohm/sq.  Ground both and you'll be safe, and
your equipment will be safe as well. 

On Sat, 2010-12-18 at 15:08 -0500, Don Wilhelm wrote:
> NOT a direct ground - through a high value (1 megohm) resistor, YES.
> That is basic SAFETY.
> 
> Connecting your body directly to ground can cause bodily harm or even 
> death if you accidentally come in contact with a source of voltage.  
> Even low voltages can be dangerous if the source is capable of high 
> current (such as a battery).
> 
> For the same reasons, do not work on a fully conducting work surface - 
> that may be fine for auto mechanic work, but should never be used to 
> work on any electrical or electronic circuits.  It is a matter of 
> personal safety.
> 
> 73,
> Don W3FPR
> 
> On 12/18/2010 2:49 PM, david m wrote:
> > YES YES YES.  Ground both yourself and the item you're working on.  It's
> > basic ESD prevention 101.
> >
> >> NO no no ... you don't want to connect yourself to ground.  You want to
> >> connect yourself to whatever semi-conducting surface you are working on
> >> (the one that the K3 and it's components are resting on).  Connecting
> >> yourself to ground merely increases the chance that there will be a
> >> potential between you and the rig.
> >>



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