Hi, I am new here and has been thinking about this for quite some time... It is generally accepted that to use electrical devices in countries with AC voltages different from yours will require a separate adapter. But what actually happens in the adapter that renders it unuseable in another country? Let's say we have a 120V AC to 12V DC adapter. I can't be sure, but I believe what it does is flip the bottom half up, step down using a transformer, then smoothen out the waveform using capacitors. Now, let's say you are in a place with 240V AC wall, and you plug that adapter into the socket, does it output anything at all? Since the functions within the adapter itself are somewhat independant of voltage supplied, is it right to assume that this adapter will convert 240V AC into 24V DC? Thanks for reading.