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Antique transformer used in the earlier railroad signal boxes.

Antique transformer used in the earlier railroad signal boxes.

antique_railroad_transformer.jpg
Copyright John Cox Photography
Size: 3888x2592 / 1.1MB

Keywords:
  • transformer
  • electric
  • electrical
  • unit
  • electricity
  • power
  • voltage
  • amp
  • change
  • polarity
  • antique
  • railroad
  • transportation

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