So I came across this blog: http://blogs.hundredmonkey.net/brewblog/?p=7
That plus an article in BYOB from July/Aug 2007 on building a stir plate resulted in this:
As you can see I've got a hard wired plug connected to and on/off switch which is then connected to a potentionmeter to control the speed of the fan. However it really doesn't control the speed well. Glued onto the fan are two magnets. And it fits into a "project box" from Radio Shack. On order are some stir bars and we'll see what happens. Wish me luck.
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