@ADCX Rob posted:
If you isolate either the armature OR the field and run one of them with a FWB full wave bridge rectifier, then it will reverse with a change of DC polarity on the track. The armature & field still need to be in series... if they are shunted, you will draw too much current. I've done this, but the performance isn't spectacular.
Thanks for the info !! I'm getting an education. What if I run on DC and keep the windings in series but reverse the field wires. Will the motor reverse when I change track DC polarity ?