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65100Re: Marklin transformer polarity

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  • luckykid43
    Jul 23, 2010
      Actually, I was not clear in my purpose with this question. I thought there might be a problem if I was using more than one Marklin transformer/controller in my layout and the polarity of the transformers themselves ended up different.
      I hope that helps.

      --- In z_scale@yahoogroups.com, "Garth" <garth.a.hamilton@...> wrote:
      > If you look at the front of the controller you will see that the control has a center off or zero volt position. The output is DC so it does not really matter which is plugged in where. However if are connected to the track and you turn your control to the left and the engine moves to the right, then reverse the plugs to the track and now when you move control to right to increase speed teh engine will move to the right corresponding to the position of the knob and when you move it past zero to the left the train will move to the left.
      > Other than aesthetics it really does not matter which rail is plus and which is minus as they change whenever you change the direction of travel of your locomotive. The only time there is conflict is if you create a reverse loop or a balloon loop at the end of a section of track that returns to the same track. This is a no no on DC as it causes a dead short between the two DC leads and need to have a special controller to make this work automatically or a set of switches and insulators to allow this to work.
      > cheerz Garth
      > --- In z_scale@yahoogroups.com, "luckykid43" <luckykid43@> wrote:
      > >
      > > The Marklin z-scale transformer power cord has a plug with two identical spade connectors. Is there any way to determine the polarity without taking the unit apart?
      > >
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