re: Europe-US electricity converter question - will these appliances work?

Generally almost everything electronic that is 110V will work with a converter. In my experience, electronic devices like a DVD player will work even with the different frequency. A digital clock radio will work, but the time will not sync long term. The motored electric devices are where the problems supposedly exist. Motors to a vacuum or a blender supposedly wear faster if the frequency is incorrect. Never really tried one, but I tried getting an American Vitamix in Europe, but I would void my warranty if I connected it to a converter, (I assume it would short if directly connected to 220V).