Specifications for Cullen Hayes crossing signals, from Western Safety Products, Inc.: http://www.westernsafety.com/products/wch-railroadproducts/wchpg1.html
This could come in handy when building crossing signals from scratch.
Specifications for Cullen Hayes crossing signals, from Western Safety Products, Inc.: http://www.westernsafety.com/products/wch-railroadproducts/wchpg1.html
This could come in handy when building crossing signals from scratch.