Where can i get a STEP UP transformer?

Question

Where can I get a transformer that can step up? I found a similar item at Radio Shack but its the opposite of what I want.

http://www.radioshack.com/product/index.jsp?productId=2104179&cp=&sr=1&origkw=step+up+transformer&kw=step+up+transformer&parentPage=search

I want to raise a 120volts machine to 220volts

Answer 1

The site below has both step up and step down transformers.  Pick the one that meets your wattage demand.

Answer 2

the radio shack item is a step-up. it plugs into a 110 wall outlet and has a 220 volt socket for your appliance. the maximum appliance load is only 150 watts, don't use this for your toaster oven. when stepping up, remember that the transformer only corrects the voltage, some appliances are line frequency sensitive, for example the clock timer may not work properly.