Getting a bit off-topic, but I was hoping to use it to convert our track ~16-19V AC to a constant 18VDC, to feed a radio-control receiver that was originally designed for on-board battery operation. The manufacturer of the receiver warned me that it was designed for a battery source, and very picky about not being subject to voltage fluctuations.
So I purchased some of these modules from the auction I mentioned. They're quite small, maybe 2" x 1" x 1"-- definitely small enough to fit in a loco tender, even with the R/C receiver board in there too. I didn't think much about heat dissipation. But if I heat-sink it to the frame hopefully it will be ok. It just occurred to me that being so close to the receiver, I wonder if it will create radio frequency interference? Haven't had a chance to try the experiment, too busy with other hobbies and holiday preparations.
