4 G Scale FA B&O engines on my garage test layout 

I now have an A-B-B-A set of Aristo-Craft FA G Scale engines. I've had 3 for many years. The new B unit has sound, it's the front B unit in the video. It sounds good, and all 4 engines run well. Each unit runs great, and I was wrong in the video, they run better with a PWM (Pulse Width Modulation) transformer and also runs fine with 6 Amps. The lights are better as well with PWM.