Greg K2UM wrote:
One touch and no static sparks to my equipment during operation, especially
during the winter, and a whole desk mat to work on my K3s and other
equipment.
-
If you want to discharge the static with a "touch" you need to touch a real,
bare-meta
Ron D'Eau Claire wrote:
>Greg K2UM wrote:
>One touch and no static sparks to my equipment during operation, especially
>during the winter, and a whole desk mat to work on my K3s and other
>equipment.
>
>-
>
>If you want to discharge the static with a "touch" you
Ian, if you read my message you'll find that we agree on all but one point.
You added some good information about ESD safety, but that wasn't the intent
of the post. I was responding to a specific comment about someone "touching"
an ESD mat to discharge oneself. As you know, that won't work. (Act
snip ...>
> When doing field repair we seldom have the luxury of anti-static mats,
> wrist
> straps, etc., but a little care in what we set the board on (not on cloth,
> etc.) and touching a ground before picking them up keeps the parts safe.
>
> Ron AC7AC
>
We did the touch method for some
Ron D'Eau Claire wrote:
>Ian, if you read my message you'll find that we agree on all but one point.
>
Having re-read the whole of the ESD section in the K3 Assembly Manual, I
wouldn't disagree with a single word.
But each of us is now trying to condense this whole subject into an
exchange of b
One thing worth noting: 1000x lower resistance isn't necessarily better,
especially given that it's not uncommon to have a battery in modern gear.
The mat isn't supposed to ground everything, it's supposed to bleed off
static charges. It's also why wrist straps or something to ground you
are
On 04/06/2014 01:10 PM, Sam Morgan wrote:
Due to the recent subject of Anti Static mats, I did a little googling
and thought I'd share my findings.
...
maybe Alan or someone more knowledgeable than I can let us know if the
Sierra is really up to the standards we need met?
From my 2010 posting
oops never mind, I just reread the pdf on the Sierra FS and it's made in
China, where as the Desco is made in the US (or so they say)
On 4/6/2014 9:00 PM, Alan Bloom wrote:
I recommend against using a mat that has no specifications other than
asserting it is an "anti-static mat." I found that
t;Sent: Apr 6, 2014 7:21 PM
>To: elecraft@mailman.qth.net
>Subject: Re: [Elecraft] Anti Static Mats
>
>oops never mind, I just reread the pdf on the Sierra FS and it's made in
>China, where as the Desco is made in the US (or so they say)
>
>On 4/6/2014 9:00 PM, Alan Bloom
On 04/06/2014 09:24 PM, Fred Townsend wrote:
...I flipped over a new mat. It clearly said antistatic but the
> older mats didn’t have any labels and they looked different.
> I took an ohmmeter, stabbing the probes in about an inch apart.
> No reading.
You can't measure the mat resistance with
ts of dead mats by now?
73
Fred, AE6QL
-Original Message-
>From: Fred Townsend
>Sent: Apr 6, 2014 9:24 PM
>To: Sam Morgan , elecraft@mailman.qth.net
>Subject: Re: [Elecraft] Anti Static Mats
>
>
>I was once asked if the mats on my assembly line were antistatic. I
if you put a sensitive part
on a something that conducts
well then you get a static
discharge and damage.
__
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ports of dead mats by now?
73
Fred, AE6QL
-Original Message-
From: Fred Townsend
Sent: Apr 6, 2014 9:24 PM
To: Sam Morgan , elecraft@mailman.qth.net
Subject: Re: [Elecraft] Anti Static Mats
I was once asked if the mats on my assembly line were antistatic. I thought
they were but I w
That would mean the part was charged. How would that happen?
-Original Message-
>From: "Lawrence D. Lopez"
>Sent: Apr 7, 2014 5:23 AM
>To: Alan Bloom
>Cc: elecraft@mailman.qth.net
>Subject: Re: [Elecraft] Anti Static Mats
>
>if you put a sensitive par
.qth.net
Subject: Re: [Elecraft] Anti Static Mats
if you put a sensitive part
on a something that conducts
well then you get a static
discharge and damage.
__
__
Elecraft mai
When one touches it, a charge is developed - then when it comes in
contact with a fully conducting surface, damage can occur. If instead
you are working on a proper anti-static mat, the charge from your body
and the part is dissipated slowly, no damage will be done and everything
will be at th
Greetings, all.
Dave Jones, who runs the EEVblog, has a few videos relating to anti-static
bags and mats. The first one that talks about anti-static bags is worth
watching. It shows the difference between the common pink anti-static bags
and the silvery static shielding bags. Those pink bags a
Hard to figure out what he is trying to prove. Finally on the antistatic mat
issue, his point was that it doesn't affect measurements made with circuits
lying on the mat. I guess I was thinking that he would show us how the mat
is antistatic, as he did with the bags.
Greetings, all.
Dave Jones,
http://en.wikipedia.org/wiki/Antistatic_agent
-
Chuck, KE9UW
--
View this message in context:
http://elecraft.365791.n2.nabble.com/Anti-Static-Mats-tp7586727p7587021.html
Sent from the Elecraft mailing list archive at Nabble.com.
elecraft@mailman.qth.net
>Subject: Re: [Elecraft] Anti Static Mats
>
>When one touches it, a charge is developed - then when it comes in
>contact with a fully conducting surface, damage can occur. If instead
>you are working on a proper anti-static mat, the charge from your body
>and th
On 04/13/2014 04:54 PM, Fred Townsend wrote:
> The argument has been made that when a high voltage charge it
> is discharged through the mat that the discharge must not be
> too fast nor too slow. It must be just right. To Goldilocks
> and her followers I say no it’s not so.
Not "just right" but
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