[Boatanchors] Re: GB> Caution re: 30 - 100 UF 5KVDC PS Filter Capacitor

[J Forster]

Yea, very funny.

BUT, a 100 MFD at 5 KV cap stores a LOT of energy:

1/2 * C [MFD]  * V E+2 [KV] =  1/2 * 50 * 25 = 625 Joules.....  LETHAL
!!!

Best,
-John

================

Mike Andrews W5EGO wrote:

> On Tue, Aug 12, 2008 at 06:35:31PM -0400, Bry Carling wrote:
>
> > Once o4 twice when I was teaching high school, students would go
> > out into the shop with a large electrolytic and charge it up on a
> > bench power supply to a few hundred volts. They would them march
> > into a classroom full of 9th graders and quickly discharge the
> > thing across their brass belt buckle (very, very popular among hip
> > cowboy teenagers in Tennessee in the 1970s!) to the utter shock and
> > astonishment of the younger kids.
>
> One of the stunts I saw done repeatedly while I was fixing tube gear
> in the USAF was someone charging an electrolytic to 120V or so, then
> shouting "Think fast!" and tossing it to someone. Few people thought
> quickly enough the first time or two to realize that the object in
> flight might zap the recipient.
>
> --
> Mike Andrews, W5EGO
> mikea at mikea.ath.cx
> Tired old sysadmin
> _______________________________________________