On 2005-12-02, Dave wrote:
Here's a cheap and quick, potentially noisy solution:

1. Buy two 5VDC "wall wort" power supplies.
2. connect the (-) from one to the (+) from the other. This is your common
ground lead..
3. The + lead will give you +5VDC
4. The - lead will give you -5VDC.

Make sure the wall worts are rated to deliver enough current otherwise
you'll get too much voltage drop for your app. Note that this supply is
UNREGULATED, that is, increasing load will decrease your voltage.

Only if you buy unregulated wall warts. You can get regulated
5V wall-warts and cable-lumps. They usually cost more of course.

--
Grant Edwards grante Yow! There's enough money
at here to buy 5000 cans of
visi.com Noodle-Roni!