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
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 Loudspeaker for "Union" I.T.C.87 views
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 Looking west from west portal of westbound tunnel, 3 miles east of tower "A" - Allegheny Summit CTC - C. & O.87 views
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 Automatic signal installation between Bureau, Ill. and Peoria on the Rock Island87 views
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 Red Oak to Balfour C.T.C. - C. B. & Q.87 views
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 A.C.L. R.R. - Orlando - Highway Crossing Arm87 views
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 From Ad. #K2739 "The Evalution of C.T.C. and "Union" Track Code Control87 views
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 Fig. 7 - Interlocked Signal Layout87 views
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 Positions of signals87 views
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 Schmitt General Purpose Trigger Board87 views
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 PCB General Purpose Boards87 views
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 Coding Unit for Sequence Code Control System87 views
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 Laboratory exhibit C.T.C. machine87 views
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 Dewey - Preston Installation86 views
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 Fort Worth - Dallas86 views
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 Trainmen at telephone location on signal, Moseby Jct. CTC86 views
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 JF CTC installation, Elmira, N.Y.86 views
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 86th St. Auxiliary Switch Indicator Panel86 views
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 7'-6" Style C (Bowling Green)86 views
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 Brayton Ave.86 views
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 CTC installation86 views
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 Staley Interlocking86 views
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 Control panel86 views
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 Section of Phila. C.T.C. machine86 views
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 Relay rack with K-relays, for Montreal terminal86 views
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 Dispatcher at Savannah-Hamlet C.T.C. Machine86 views
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 C.T.C. B-30 Panel for Frazier 86 views
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 Ft. Scott-Afton86 views
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 Marceline86 views
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 Slaton-Sweetwater86 views
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 Streator86 views
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 Emergency Panel86 views
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 Control panels for yard track indicators are operated in Milford Depot86 views
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