Air Cooled Rectifiers- 50-2000 Amps 10 Volts Or 1Gbt, SCRModular 12Volts Or 15 VoltsWater Cooled Modular Rectifier - 500-50000 Amps 10 Volts Or 12Volts Or 15 VoltsOil Cooled Rectifier - 50-25000 Amps 10 Volts Or 12Volts Or 15 VoltsPulsating Rectifier For Gold Plating