[Elecraft] K3 ESD

David Gilbert xdavid at cis-broadband.com
Fri Dec 17 12:16:07 EST 2010



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.

I simply laid out a large enough amount of aluminum foil to hold 
everything, wrapped a bare wire around my arm just above my elbow, and 
used a clip lead to connect the bare wire to the aluminum foil.  I know 
everyone recommends a large value resistor be placed in series with the 
bare wire for safety reasons, but I did all this on a large wooden table 
several feet away from anything else and skin resistance here in dry 
Arizona is fairly high anyway.

Dave   AB7E



On 12/17/2010 2:34 AM, David Pratt wrote:
> Wear cotton clothing rather than nylon or highly static material; avoid
> walking around on static-prone carpets.  Wrap a length of bare copper
> wire around your wrist and solder a 2 megohm resistor to it. Connect
> that to a nearby ground connection.  Just ensure that the K3 is always
> at the same potential as yourself by touching its frame regularly.
>
> You should be okay at that.
>
> 73 de David G4DMP
>
> In a recent message, Kjeld Holm<kh at kh-translation.dk>  writes
>> I am about to install my subreceiver  and would like to finish before the
>> weekend but I have no ESD work place. How can I best protect the parts? Or
>> do I have to wait until I can get the needed ESD equipment?


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