Check the listing for details. 33 Amp HF Radio Power Supply 10-15 VDC 13.8V 12V 30A Real Megawatt® W/ 120V Cord. Condition: New. Listed at 64.00 USD. Run two, three or more in parallel to multiply the amperage. 66 Amps, 99 Amps, 132 Amps and so on.Adjustable Voltage 10 - 13.8 VDC 12 volt DC 33 Amp Regulated Switching Power Supply MegaWatt S-350-12. This unit will cold start and hold up to a 33 amp load. This is a high quality commercial / industrial grade voltage regulated unit. This auction is for one brand NEW 12 volt DC, 33 Amp Peak, 30 Amp Continuous, Regulated Switching Power Supply. Awesome for powering your high-powered Shortwave radio equipment in the house. This unit has a built in cooling fan on a thermostat to control fan speed at all temps. and over voltage/short circuit protection. It operates on 120 volts AC or 220 volts AC, 47Hz to 63Hz. It's fully shielded for use in a radio environment. It's brand NEW, never used, not refurbished, not returned. The size of the unit is 9 X 4 5/8 X 2 inches. This is a "switching" power supply, which uses solid state electronics to produce the output voltage. This makes this unit much lighter, smaller and less likely to over heat and malfunction. A 110 volt power cord is included with each unit. Due to customs regulations we can not ship to APOs, sorry. Thanks for looking. Payment must be received within 3 days after the auction closes. Items not paid for will be re-listed. Shipping is done by US Mail. We have been selling high quality power supplies to the home and commercial market for the past 10 years. All power cords come with a USA 120 volt plug and no 220 volt adapters. The 120 volt cord will work fine with a 220 volt plug adapter.