>Can I hook two of the 12 VDC power supplies together (positive to positive and
>negative to negative ) and attach the output to the 24 volt device I'm
>working on? Will I get sparks and smoke if I do?
No smoke, but only 12 volts still...
However, if like many cheap power supplies, they have outputs isolated from
ground, you can hook them up in series, positive of one to negative of the
other, use the negative of the first and the positive of the second for
your power and you should have 24 volts. Just make sure there is no common
chassis negative connection between them on the output side meaning that
they can't short between the chassis.
--
TNX, 73, Mitch Hill - K1FH