Does the Beta have a voltage selector on the back? Probably not, but, if it does, problem solved!
Next, it's possible that the transformer can be rewired for 220v mains.
Otherwise, you'll need a transformer to reduce the voltage from 220 to 110. They're easily available from military exchanges and from US personnel transferring back to the States, but I don't know of other sources. I was in the Navy when I was in Europe.