CTA Surface System History presented by the Illinois Railway Museum

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Below listed are Wiring Diagrams for CTA Equipment.


  • Buses 300-449
  • Buses 3000-3244
  • Buses 3300-3499
  • Buses 3700-3875

  • Buses 5000-5499
  • Buses 5500-5599
  • Buses 7400-7944
  • Buses 8000-8149

  • Buses 8200-8349
  • Buses 8400-8498
  • Buses 8500-8649

  • Trolley Buses 9323-9357 & 9361-9367 (Pullmans)
  • Trolley Buses 9413-9761 (Marmon-Herringtons)



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