You need a 12 volt DC power source. You have a few options.
- You can add a AC to DC rectifier to a circuit from your AC accessory transformer.
- You could buy a cheap HO transformer
- Or, you could salvage a DC wall wart from some old piece of electronics. I save old wall warts. You can see the power rating on the back of them. It will read something like Output DC 12V 2A. Amazon has one for $8.99. Just cut the plug off and wire to a distribution block to your switch machines.
- PIKO switch controller that takes AC power and controls the LGB switch machines that Ross uses.
George