RR Theory of Operation Technical Manual

O HenryOGR Forum Member

I think anyone who enjoy`s real trains might be interested in this manual as it has a little history on older signal operations. If you are a RR signal technician, you may like this too. I was browsing Byram Labs website and came across this link.

http://www.byramlabs.com/pdf/R...eration_Tech_Man.pdf

4/28/128:50 PM

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