DI­A­GRAM 3

Model Rail (UK) - - Railways And Castles Masterplan -

The prob­lem with po­lar­i­ties: re­gard­less of whether In­sul­frog or Elec­trofrog points are em­ployed, the track po­lar­i­ties will con­flict as the loop re­turns upon it­self.

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