IT has been done and documented on several sites, including this one. Mostly it is good for a cheap alternative to getting an actual committed PSU for the pelts. Personally, I would go out and find a good quality dedicated Power Unit and run pelts that way. But then again, I dont use pelts so what do i know about them
One thought is to get ahold of one guy here that builds linear power units from scratch......cant remember what his handle is at the moment though. Sorry.