>Don't know what you call inexpensive, but if size is an
>issue you might try the DC-DC converters from Traco power.
><http://www.tracopower.com> You can get them with +/- 15 volt
>outputs. The 5W units sell for 37 Euros in Ireland + tax. I
>use them with wall wart converters for all the low power
>stuff I design these days. It saves a lot of time on assembly.

I have used a single output version of these, and quite liked them. Real
nifty little converters for projects where you want a bit more than a wall
wart, or want to build it in.

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