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· DT
5,345 Posts
The big capacitor is really big - perhaps it serves another function other than suppression. Is it perhaps a sort of UPS?

The other little one can go. the thing with the coil spring and graphite rod is a choke. It can stay. If you remove it, you will have to add a jumper.

The noise is not that bad. I have nosier locos. Sounds more like gears than the motor.
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