On 27/02/2014 07:52, harryagain wrote:


Both voltages are common in the USA. So it will be precisely for this
pupose.

Unlikely, me thinks. 240V in the states would be used for high power
items that would otherwise draw too much current at 110/120V. This class
of item wouldn't fall into that use category, 240V wouldn't necessarily
be plumbed in at the environment of use (studio, lounge etc...).

More than likely the choice of transformer is commonly in international
use. However the designer might not have sized the device for 50Hz use,
even though the provided windings are configurable. And then there's
other components. Ratings of capacitors, rectifiers, EMI filters and
insulation / creepage distance.

So all that needs checking to be safe. You are right about consulting
documentation.

--
Adrian C