@Jeff_the_Coaster_Guy posted:I have a thread somewhere about trying to use a Tsunami 4 amp board with a big Pittman in a premier MTH steamer. I gave up after trying very hard to justify keeping it, and ended up switching it out with a TCSWOW high amp card and it works great.
That 4 amp will not behave long term with your Pittman, regardless of the low draw during normal operation.
^^Pete (Norton) seems to have success with his. I'll give you another option... Search some auction sites for the same size Pittman motor in a higher-voltage winding. The stock motor is rated for 12VDC. 15.1 or 19 volt winding would be ideal but they are kind of rare. If you can live with a slower top speed, a 24-volt Pittman is still a drop-in replacement, no machine work is required. If you install a 19- or 24-volt motor in place of the stock 12V motor, current draw will be greatly reduced and four amps will be plenty.
You'll have to redo your speed curve CVs. You'll probably get smoother performance / more resolution between speed steps. The only downside to the motor swap is a lower top speed.
