Whoo! Got Presslab's DC-DC convertor working!
It took about 8 hours of work, but I finished it!
This was just an experiment on an old AT power supply. I'll order a tiny micro atx supply, mod that one, too, and have a working DC-DC supply for my car!
Many, many thanks to Presslab! :D
Here's some pics, I'll do a full writeup with lots of pictures and instructions when I get home from work tonight.
[ 12-21-2001: Message edited by: Arby ]