[sdiy] scsi shock/on the subject of shocks

[Dave Krooshof]

On the subject of shocks (static):

It might be that it is not only the carpet, but also the chairs.
The gas cilinder of some chairs, and the fibers of the seats
can load you up.
If I use the wrong chair at my work, I get shocks all the time.
I got a shock free chair now.

Other suggestions:
How about a small metal plate on the sole of your shoe that
grounds your body all the time?
Or a metal spot in the chair through which you are grounded
as soon as you sit down?
Or a metal edge on your desk, to ground though the underarms?
All with a nice resistor...
Why ground at the wrist anyway?


Humidifiers are totally cool when you love plants. They grow wide!
Check out the ones that can make mist. Looks cool too.
The just pump cold water through a tiny membrane and then
blow the small waterdrops out.

about shocks, AC

>One word: REFERENCE. After having worked on 3000 volt systems, I can
>honestly say that referencing is *everything*... I watched 3 mos of
[snip]
>Bad/damaged/leaky caps can do this sort of thing, esp if they are used
>to reference an external system....
>
>Rob

Thanks,

though I'm not sure how I need to rework my power supply
like this. But I'll be looking into that.

>One solution is to get a power strip with a switch (if
>they have such things where you live), and plug it all
>into the power strip. One flick of the switch and no
>more shocks.
>Tim
I see.
I noticed the groundwire in the powercord is broken.
But that should still mean my power supply should shoot me.
Interestingly enough: if the scanner is off, There's still
64 AC on the socket!

Harry:
>... and you were high enough impedance to get blasted.
:-) viva l'resistance.

I tried measuring over a 5k R, which still showed tens of volts.

I could earth it again, but I think that is a nasty sollution.
Guess I'll be learning a lot more on power supplies in
the coming days. (enough books out nah.)

Thanks again.

PS
I didn't feel the 50Hz overtones as much as 'normally'.
RC lowpass filter? (where C is in the powersupply and the R was me)

The hand still hurts, especially the ring finger.
-- 
____________________________________________________
And I will make thy windows of agates, and thy gates of carbuncles,
and all thy borders of pleasant stones. (Isaiah 54:12)

        <Please> no html-mail! html does not belong in email. </please>

http://www.xs4all.nl/~krooshof