In article ,
"ARWadsworth" writes:

"Dave Plowman (News)" wrote in message
...
In article
,
Vet Tech wrote:
If you had read the OP correctly, you would have learned that the
battery was disconnected and that the sounder was getting power from
a capacitor. The capacitor is there to provide power if some one cuts
the wires or otherwise tampers with the system. Tell you what,come
round and put your fingers on the contacts of the capacitor and you
soon learn what it does.

Err, I doubt it. Unlikely to be more than a couple of volts.

I would not like to touch the stobe light connections when stood at the top
of a ladder!

The trigger pulse is usually something like 1kV-4kV, but it's
extremely short and low energy. I have accidentally touched one
in another application, and I didn't notice at all, except that
it stopped the flash tube firing.

However, you would get a belt off the flash capacitor, which is
usually something like 200V-400V and contains the energy for one
flash.

The other place you might get a belt is a peizo sounder, which
is driven through a step-up transformer, but if you're that close
when it's going off, deafness is more likely to be a concern.

The capacitor on it's own would not bother me.

Battery? Usually 3-4 NiCds.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]