QUOTE What you have to be careful of is that you are only relying on the very small brush spring to transmit all of the current to the brush!
If you have a short circuit there is the possibilty that the spring could just fry, the converted brush not only have the spring but the brass brush as well!
What kind of short?
The spring is in a series circuit consisting of the decoder outputs, brush clip, spring, brush, motor armature, opposite brush, spring and clip. If you can get enough current sustained for long enough to destroy the spring then I would be far more concerned about the motor and the decoder. Any decent decoder these days is overload protected.
A forum community dedicated to Model train and railway owners and enthusiasts. Come join the discussion about collections, displays, models, styles, scales, motors, reviews, accessories, classifieds, and more!