Anyone used these to power a loco?

[nachoman]

Looks like a re-release of the PDT. As I recall, the price made them prohibitive for anything but special locomotives. Back when MR had construction articles, I remember a few situations where the author used a PDT because they wanted the loco to have a detailed interior - such as a street car, or a detailed cab on a road switcher. I wonder how powerful they are, and how noisy (I wonder if the motor vibrations would more easily get transfered to the track)