Got a friend that is building a power supply for a single 8877. Problem is, it is a 2800V 2A CCS. Once rectified it will be near 4KV. My friend wants to drop the voltage about 400-500 volts. I told him to get a variac so he can adjust it. Too Rich for his tastes. Anyways, I was wondering using a fixed resistor. What is the best way to drop the voltage? Drop it down from the primary side or secondary/HV side before rectifiers as voltage is lower. If I do it Primary side, the transformer is 220V. What just one side need to be dropped or both legs? Anyone do this before?