Date   : Fri, 22 Jul 2005 21:07:09 +0100
From   : "Colin" <cwhill@...>
Subject: Re: floppy discs

Mike T wrote <snipped>
>Just a word of warning - switching power supplies can retain >a
>potentially lethal charge for long periods of time after being
>disconnected from the mains.  They are supposed to >contain bleed
>resistors to dissipate any residual charge but bitter >experience tells
>me these don't always work as expected.

Ah yes, I remember that from my days of fixing/replacing capacitors in my
reel to reel tape recorder after it became obsolete (bought several
second-hand and stored them in the loft for spares - I'm on the last one now
:-)
. They had huge things like a "C" size battery in them and you had to
dischrge them by shorting them out with a screwdriver (not to be advised
where chips are concerned of course). I only ever had one shock but a friend
who was helping (and was a telecommunications engineer and should have known
better) got a nasty one which knocked him accross the room.
Perhaps I shouldn't fiddle with things I don't know about.
Bring back valves and things that really look like things instead of teeny
weeny bits with coloured bands on!
Thanks for the warning.
Colin Hill