A few days ago as I was buying a few parts I chose to get a transformer that seemed fantastic value for what it is. http://uk.farnell.com/dagnall-electronics/d3652/transformer-20va-2x-15v/dp/3304231
Anyway I am a bit puzzled by the logic behind the arrangement of the windings. It has 0-110 0-110-130. Why does it have the extra 130v winding on the primary? I have noticed they sometimes vary their primary side voltages but never really thought about it until now.
Here in the UK mains voltage is 220-240v so do I wire it up 0-110-0-110 or 0-110-0-130?
Thanks
Anyway I am a bit puzzled by the logic behind the arrangement of the windings. It has 0-110 0-110-130. Why does it have the extra 130v winding on the primary? I have noticed they sometimes vary their primary side voltages but never really thought about it until now.
Here in the UK mains voltage is 220-240v so do I wire it up 0-110-0-110 or 0-110-0-130?
Thanks