Originally Posted by Tourist in MSN

I would like to use such a transformer, a rectifier (about $2) and one of those cheap cigarette lighter USB chargers ($1 at the dollar store) to make a cheap USB charger that connects to a 6vac hub. I really do not want to pay over a hundred bucks for a USB charger that connects to a alternator hub when it should cost so little to build one with these simple parts. I am sure that the commercially made ones are better, but for occasional use I would like to have something like this.