Last additions - Steel Cases & Racks (Inside)
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G.E. Transformers, power panel, RPQ-41 rectifiers, and relay panel in signal room AB-94 on continuous platform near Jackson, Chicago Subway, CRT76 viewsJul 16, 2013
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Relay room at 13th St. Interlocking showing plug-in relays, RPQ rectifiers, and ground detector apparatus, Chicago Subway, CRT81 viewsJul 16, 2013
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Rear of Relay Rack in Relay Room 13th St. Interlocking, Chicago Subway, CRT72 viewsJul 16, 2013
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