Most power adaptor inputs are of the familiar concentric barrel type – a round hole, with a metal pin in the centre, like this power input on the left:
But some devices have a totally different type of power input – I’ll cover more in the coming weeks.
Have a look at this Korg keyboard power input (left) – you’ll see that instead of having a pin in the centre power input hole, it has a plastic receptor for a pin:
So check your device power input carefully!
You can ask me if you’re not sure about what power adaptor your device needs – email me at
caroline AT myvolts DOT co DOT uk. Tell me all the details of your device and and I’ll tell you exactly the power adaptor to buy.