Scale Track Signals

Paul:  My favorite signal system is the Atlas/Custom Signals system.  It's really quite flawless in operation and is very flexible as to track arrangements, train direction, etc.  The one thing that might be a drawback is the type of track that you might be using.  If the two outside rails are connected on your track, like old style Lionel tubular track or MTH's Real Trax, the system won't work.  Track occupancy is determined by a contact between the outside rails, just as in real railroading.

If you are  using track wired with both outer rails connected, I believe that Z-Stuff has the best system.  They use a light sensor to detect the presence of a train and they do have some of the best signals around.  I've seen their smaphore block signals and I've been very impressed with their slow, realistic operation.

For crossing signals, Z-Stuff makes really nice crossing gates combined with light signals that are very realistic.

Paul Fischer

I have two Marx Semaphores.  They are great with motion and light.  I just use an insulated outside rail to trigger as the train passes.