Isolating the motor


David MacLeod <davermacleod@...>
 

Hello,

I am installing a Digitrax non-sound decoder in a very old British steam locomotive. I have not been able to isolate the motor from the frame because the motor has two nubs that fit into two corresponding notches on the frame. This is what secures the front of the motor. The back of the motor attaches to the frame with a single screw. Both motor brushes are isolated from the frame. If I solder the Gray/Orange wires directly to the brushes, will this blow the decoder?

Thanks,

Dave MacLeod

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