Absolutely correct Gary!
Some of the US 110VAC power strips have electronics inside which are vulnerable to 230VAC 50htz.
This issue is that Duane, or anyone else trying this risky substitute for the "right thing," won't know whether the device will melt-down or not. It is one of the reasons I said in my reply to Duane, "There also could be lots of other issues...It is much simpler and much better to..."
Maybe I should have gone into more detail, and I apologize for not giving the "burn your boat to the waterline" warning. I had written "other issues," and need to state that this is not the only other issue.