[Elecraft] Static - SAFETY WARNING

[peter gerba]

Hi Paul;

I called Jameco. They told me that the part number that I quoted will no
longer be "reordered", but they currently have 50 in stock. The larger sizes
will be restocked and part of normal inventory.

pete

-----Original Message-----
From: Paul Gates, KD3JF [mailto:pearly732003 at yahoo.com]
Sent: Tuesday, June 06, 2006 8:32 AM
To: peter gerba
Subject: Re: [Elecraft] Static - SAFETY WARNING


Mat no longer available with Jameco.

Paul, KD3JF
Glen Burnie, MD
FM19qd (Map Grid Square)


----- Original Message ----
From: peter gerba <gerbaphoto at sbcglobal.net>
To: "Darwin, Keith" <Keith.Darwin at goodrich.com>; Elecraft at mailman.qth.net
Sent: Tuesday, June 6, 2006 11:26:10 AM
Subject: RE: [Elecraft] Static - SAFETY WARNING

Hi Don;

I wouldn't build without a Mat.

See the Jameco site www.jameco.com  part# 10575ck = 11.3x22" mat for $9.95.
Get a wrist strap too; there were some for under $7.

No connection to Jameco.

pete, kn6bi


-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net]On Behalf Of Darwin, Keith
Sent: Tuesday, June 06, 2006 7:04 AM
To: Elecraft at mailman.qth.net
Subject: RE: [Elecraft] Static - SAFETY WARNING


Don,

Yes, you're absolutely right.  My suggestion to use some conductive
surface (alum.) assumes it is used only for construction (no power
applied).  During testing, you'd have to change the setup to prevent the
rig from shorting!  I'm glad you mentioned it!  As I think about it, I
can see that the metal top is a poor substitute for a real static mat
and can do only 1/2 of what a true high-impedance / conductive mat can
do.

I honestly don't know the price of a static mat.  I got mine free from
work as it was soon to be tossed out.  I've seen 'em in Mouser and I
think they were $50 or so but I bet they can be had for less.

73!

- Keith-

-----Original Message-----
From: Don Wilhelm [mailto:w3fpr at earthlink.net]

I agree with all your ESD comments, but I would hesitate to suggest that
anyone do electronics work on a completely conductive surface such as a
sheet of aluminum.  The possibility of a short to the work surface while
testing or working on powered equipment is high.  Even with low
voltages, the current can be high and therefore dangerous.  The surface
should be conductive, but not of a low resistance.

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