Re: Problems with adaptors not working?
 

If you're still looking, we have some that we bought years ago from this website Voltage Converters - Power Converter Inverter Transformer and they're all still going strong, powering (amongst other things) a stereo. You just need to pick the one that has the appropriate power rating (which is the power rating of whatever you want to plug into it plus a good chunk of margin for additional current draw on startup).

Re: Problems with adaptors not working?
 

Thank you Oakvillian!