The output section of the power supply is highly filtered to eliminate RF in the output voltage. Yes, it is possible to properly filter a switching power supply. Please read my feedback for reviews from all the happy HAM radio operators.
It will cold start and hold up to a 50 amp load even at 14 volts. The S-700-12 is 9.5in Long X 5in Wide X 2.75in Tall. This is a high quality commercial / industrial grade voltage regulated unit. Awesome for powering CB radio equipment in the house. Great for linear amplifiers and of course HAM radios.
This unit has a powerful built in cooling fan that runs continuously to keep the power supply from expanding and contracting with cooling cycles increasing its lifespan. It operates on 120 volts AC or 220 volts AC, 47Hz to 63Hz.It's fully shielded for use in a computer or radio environment. 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. Items not paid for will be re-listed. 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. A powerful fan ccols this very powerful power supply. Switching power supplies generate a lot of heat because of there small size. The fan is needed for a long reliable life span.