I have a radio the supply power is 220V AC and I have problem on it and after check I found the voltage transformer inside the radio was defect . The input supply for it is 220 v ac but I did not know the output. The voltage transformer has this data on it
V - 0250130G
K3 35115
CAN YOU HELP ME FROM THIS DATA TO TELL ME THIS TRANSFORMER CONVERT 220 V AC TO WHAT VALUE. MANY THANKS FOR YOUR CONCERN

It's a mfr's part number. You may heve to try to get the schematic and try to reverse engineer it a bit. Possibly using a variac as the power source to another transformer. Use filter cap values to gauge the max voltage. They might be 2 to 4x the voltage.