AC Input to DC Chargers

[Ted Sander]

Veering a little off thread about battery chargers, has anyone adapted a PC
power supply to feed any of these chargers on the bench?  Any cautions to be
aware of?  Seems like most chargers are made for 12V input - great at the
field, not so handy on the bench unless you spring for the high priced
add-on.  Obviously, we're talkin' enough input capacity for TX and RX
batteries here, not mega-cell electric flight.  I've got two or three old
dead PC's peeking out from under the workbench.....
Going further, any advice on converting these power supplies to a reasonably
accurate variable output?  My TX lets me calibrate it's built in volt meter,
but you need stable, varying amounts of dc voltage to do it.  I'm tired of
driving across town to borrow my friends regulated power supply, plus having
my own would come in handy for other projects.  (But not enough demand to
justify buying one).  Any web resources about this?

=====================================
# To be removed from this list, send a message to 
# discussion-request at nsrca.org
# and put leave discussion on the first line of the body.
#