Does anyone know how to reverse DC polarity using a momentary single pole switch? I have a Lionel Balloon ride that has failed electronics but a good DC motor. The drive system in these was always problematic so I am trying to figure out a new way to get the 2 balloons to go up and down. The DC motor works fine in raising and lowering the balloon and I can reverse directrion by switching polarity manually. I have installed two single pole momentary switches that the each balloon touches at the end of its run. I need to incorporate a relay or some other device so that a tap of either of my two momentary switches will reverse DC polarity allowing the balloon to switch up/down direction. Anyone have any suggestions? Phil
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