hi all - sorry if this is trival but not found much useful info....
I have many devices whos power supplies have such info as 50-60hz and
110-240V printed on them (eh mobile phone charger, mp3 player). Am I correct in saying that this essentailly means the device will be fine in pretty much any country where the frequency and voltage are within those ranges without anything other that a travel plug adapter?I understand the above is called a "Switching power supply".
If thats the case, are step up/step down transformers only ever required for devices that have adapters/supplies that say (for example)
60hz, 240v - i.e. linear PSUs?I know it sounds simple but I just want to check before I go and blow anything up accidentally :-)
thanks!
Gav