RRSignal.com Photo Gallery

Featuring Union Switch & Signal equipment photos
No touchups - No watermarks - Enjoy!
Fixed SQL errors - More photos coming in 2022


Most viewed - Conway Yard (P.R.R.)
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Indicator on retarder control machine34 views
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Automatic Switching Machine34 views
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Trimmer signal34 views
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Car speed is measured as each cut goes through master retarder34 views
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Wheel counter and group retarder34 views
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Closeup of jack Board without wire leads34 views
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Rear view with terminal board up34 views
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Yardmaster Office (Eastward)33 views
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Control Tower View Intermediate Retarder (Eastward)33 views
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Conway Yard Retarder Control Machine33 views
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East Conway Yard - Hump Yard Control Machine33 views
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West Conway Yd. Hump Control Machine33 views
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West Conway Yd.33 views
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Hump Signal Controller33 views
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Car speed is measured as each cut goes through master retarder33 views
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Automatic Switching Equipment with maintainer33 views
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Cab, hump and trimmer signal controls on automatic switching machine33 views
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NMEA Building and General Yardmasters office33 views
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Differential Pressure Unit33 views
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Auxiliary Exhaust Valve33 views
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Cars roll past yardmasters office into classification track33 views
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Retarder control machine33 views
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Indicator on retarder control machine33 views
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Cars approaching intermediate retarders33 views
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West Conway Retarder Machine32 views
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Conway Yard Retarder Control Machine32 views
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Conway Yard Microphone32 views
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Cars roll past yardmasters office into classification track32 views
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Car rollability on tangent track on car weight are measured near crest of hump32 views
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Classification track from retarder control tower32 views
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Computer equipment32 views
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Switch machine32 views
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