I made a DC Power Supply from an old PC Power Supply and AC Power Supply using a Lionel CW-80 Transformer then fused all the outputs and used banana jacks and put banana plugs on cords with test probes. I have +12 V, +5 V, +3.3 V, and -12 V DC from the PC Power Supply, and Adjustable 0-18 V AC for both Track and Accessory Power from the Transformer for doing testing on my workbench before putting it on the layout. Works Great! It won't win any awards for looks but it does the job. That is a 10 ohm 10 watt Power Resistor mounted on the outside right side for the load required to trigger on the PC Power Supply.