[Milsurplus] Attention Smart People:

[arc5 at ix.netcom.com]

Please take a look at this full-wave doubler circuit:

http://www.kwarc.org/bulletin/99-04/tech_corner.htm

At the end of the page is this warning:

    This circuit can be operated off the AC line 120 or 230 V). 
    BUT the negative ground must be left floating since 
    one side of the line Is grounded and YOU CANNOT ground 
    both the Input and the NEG (or POS) DC or else B O O M! 

I guess I'm stupid (I've only had one cup of coffee, so there's my excuse),
because I don't see a current path from the DC B+ side 
to the AC line, other than ground which is supposed to be -0- potential 
on both sides.  Now, if your B- ground came loose on the power supply
and you didn't have a grounded line cord installed 
(which would be even stupider than me with this kind of voltage) 
you'd have full B- on the chassis to ground and your wife 
would have to pay for a funeral.

OK... what am I missing here?