@Norton posted:Get a closer look at the board that powers the fan unit. If it has a regulator on it you can tell what voltage the fan motor runs at. Optionally measure the voltage on the fan motor that works. Easy to make another regulator board or use one of those buck/boost board off the internet.
Pete
This is what's on the Fan Motor PCB:
To be brutally honest I would not know a regulator from a schmegulator but I'll extract the motor from the mount it's in and see if I can read any voltage info from that. Fortunately I do know about buck/boost boards and have some spare adjustable voltage AC-DC converters small enough to fit in the body shell. I think you are saying use that to power the fan from track power, right? It doesn't matter to me if the fans spin whenever there is power to the track (although I had wondered about wiring them to one of the can motors so they only operate when the engine is moving).
