Mark Rollins – Model Railroading

Mark Rollins – Model Railroading –  model railroad information, complete with model railroad circuit diagrams.  Electrical Circuits you can make! With 3D wiring Sketches, easy for the beginner.

Mark Rollins - Model Railroading

I enjoy model railroading – HO scale thank you. I build modules that vary in width anywhere from 1 foot to 3 feet, with lengths ranging from 3 feet to 8 feet. Each module has a separate setting (even different decades). I have completed a switching yard, a small industrial park, and a farm scene.

A dual alternating flashing light circuit. This project is best for mounting on a layout to light a crossing or ring a bell.



dapj means digital analog power junction

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