All frequent travelers know that if you are visiting a foreign country, it's a good idea to know ahead of time what kind of sockets the country you are visiting has, and what kind of adapter you'll need in order to plug-in or charge your electronic devices.
My wife and I have a home in Brazil, where the standard socket configuration is different from the U.S., using round plugs rather than the standard flat prongs on devices manufactured in (or more frequently now, for) the U.S. market.
I've installed dual pronged sockets in our home, which will accommodate both round (Brazilian) and flat (U.S.) pronged appliances and chargers, but have frequently run into a problem when trying to use multiple devices from both countries on the same power strip.
While it's possible to purchase power strips that will accept both plug configurations, these tend be very expensive, (more than US$20), compared to the relatively cheap power strips which can be purchased in the U.S. ($2 to $5 US dollars). So I decided to make my own, and here's how I did it.
If you frequently visit another country which uses a different type of plug then your home country, and you need to plug in devices with two different plug configurations, this Instructable may be helpful.
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• Power drill
• Screw driver