On Wednesday, Apr 21, 2004, at 23:54 US/Pacific, Robert B. wrote:

> $50 I would definitely go for.
>

http://www.elexp.com/tst_1802.htm is $58 (plus postage/etc.  sigh.)

You have some leeway in your lm317 design.  Should be good for at least
500mA with a heatsink.

I'm starting to be a fan of wall warts of assorted types.  They can
usually be plucked out of the trash.  Some aren't regulated at all, but
others deliver the same sort of convenient voltages as a PC supply in a
much nicer package...

BillW

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