A.C. GoHz Power Supply Inc is a manufacturers-based online shop in AC power supply industry to provide solutions for changing regular grid power frequency (50 Hz, 60 Hz, 400 Hz), DC power source to adjustable frequency & voltage source. There are some bad things that could happen when giving a bridge rectifier 400Hz mains, and slow diodes and extra heating on 400Hz power supply. Solid state pure sine wave frequency converters, variable frequency drives, AC/DC power inverters etc. are for sale in affordable price on GoHz.com.