Walmart, Amazon, Advance auto or Staples all have something similar to this inverter. Get something 150w or more and then plug your standard 16v model railroad transformer into it.Hi. I need a 12VDC to 16VAC approx 3Amp inverter circuit for a model railroading application: Specifically, to supply a 16vac motor using a 12vdc battery. Anything like that doable or available? Please advise.