Jasen Betts wrote in a message to David Drummond:

 JB> Hi David.

 JB> 13-Dec-03 18:27:40, David Drummond wrote to Matt Mc_Carthy
 MM>> They are _almost_ there.  The switching PSs can be run from DC,
 MM>> so just put 10 of those monster 12 volters together!  That should
 MM>> last a weekend or two...

 DD> How do you achieve the -12V? You'd have to set up your 12 volters
 DD> to produce 24V overall, with the centre tap as zero...

 JB> nah, get ten of them in series and feed 120V DC into the power
 JB> socket of the powersupply.

Won't work,  as the input to most of these supplies when they're at the
120v setting is to a voltage doubler,  which assumes AC.  You'd need _20_
of them to use on the 240V setting,  which would work...

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