While I was in the military, I had several assignments to countries that used 220 volts.
First thing after getting there was to purchase several 220-110 volt converters for my 110 volt devices.
These were always simple auto-transformers. They were either a metal or plastic box ( depending on power rating) with a grounded Euro 220 v plug on a cord. On the box was a polarized grounded 3 prong 110 volt socket. If everything is plugged in the way it should be there are no problems with auto transformers.
DuWayne
KV4QB
First thing after getting there was to purchase several 220-110 volt converters for my 110 volt devices.
These were always simple auto-transformers. They were either a metal or plastic box ( depending on power rating) with a grounded Euro 220 v plug on a cord. On the box was a polarized grounded 3 prong 110 volt socket. If everything is plugged in the way it should be there are no problems with auto transformers.
DuWayne
KV4QB