Originally Posted by worxman02
I'm running my DIY stirplate with a 5v cellphone charger and it works perfectly. It slows the fan down enough that I almost dont have to regulate the speed in large starters. Its up to you if you want to have a wider range of speeds or not.
Same here. I get pretty good stirring action with my 5V power cord. I agree, though, that if it's not running fast enough for you, then upgrading to a 12V cord from any of the above mentioned sources should do the trick.