Model Railroads

Page 28

Power Supply - The FTRR Air Wing

Okay, it's not really an airplane, but when the project boxes that I bought online arrived, the dimensions were much smaller than advertised. I really don't like sending things back, so, in order to get the Meanwell 24vdc power supply to fit, I chopped two boxes into one, added a fan, made some clearances and ending up with a "propeller plane."

Above - Mar 6, 2011 - The first box was cut up and the 12vdc fan mounting built.

Above - Mar 15, 2011 - The second box was tee'd into the first and the power supply checked for fit.

Above two pix - Mar 15, 2011 - The fan housing finished and lids altered. Outlet vents were added at the end opposite the fan.

Above - Mar 16, 2011 - The 120vac wiring added for the power supply. Note the plethora of little aluminum 1" vents.

Above - Mar 22, 2011 - The box was still too small and the plethora of little aluminum 1" vents weren't enough to provide adequate airflow past the power supply. Maybe these holes will help.

Above - Mar 26, 2011 - The air was channeled with added structure. By this point it finally occurred to me that building a box from scratch would have been easier (but not as much fun).

Above - Mar 28, 2011 - Finally.....

Above - Mar 29, 2011 - The wiring.

And here is the system for which it provides power, an early Aristocraft Train Engineer Radio Controlled Throttle System:


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