I have a Power transformer from a valve cd player.I can't find the transformer for it.It is 120/240v in the input,but the secondary has multi voltages:0v 33v-0v 13.5v-2.7v 0v 2.7v-9v 0v 9v.The total power consumption is 28watts.how to calculate Amps for each winding?.Someone is smart out there.Please help.