Wiring semaphore

I don't have one in front of me to look at, but if you flip it upside down, it should be fairly obvious which is:

• The lamp lead
• The coil lead
• The common lead

To use the insulated section to activate the coil, connect the common lead to the center rail or an accessory post on your transformer. Connect the lamp lead to the outside uninsulated rail or the common ground of the transformer. Connect the coil lead to the insulated rail. No relays required.

However, when you do it this way, what usually happens is there is intermittent contact with the insulated rail, which causes the coil to chatter and the arm to bounce. A relay with a delay circuit will stop this.

Thanks for all the comments.  I will try the suggestions.

I connected the middle post to ground. One wire to positive on an external transformer which lit the light.   I attached the last wire to the insulated rail.   I ran a train over the rail an the arm did not go down.  i tested the coil and it does work.   Any thoughts?

I kind do figured that.  So what is wrong with the wiring?

Look at the bottom. There should be 2 insulated and one uninsulated. Connect the uninsulated to an accessory terminal on your transformer. The insulated one that goes to the lamp goes to the common U post or just to the outside rail (not the insulated track segment). The remaining post is the coil. That goes to the insulated track segment.

This is how I wired my semaphore with insulated track.  The best way to describe the wiring is to try to relate to it visually.  Looking at the semaphore from the rear, you see three terminals.  The one on the right goes to a lock-on on the track preceding the insulated track.  Connect that wire to the + side of the lock-on (or the center rail side).  The middle terminal of the semaphore goes to the - side (common rail) of the lock-on.  Make sure this lock-on on the uninsulated track is on the same side as any other lock-ons powering the track.  The insulated portion of the insulated track (common) should also be on that side so that the lock-on precedes the insulated part of the insulated track.  The left terminal of the semaphore is connected to the common rail of the insulated track opposite the common rail that is insulated.   I used a single lock-on for this purpose, but you can use a convention two terminal one as long as you hook the wire to the common part of the lock-on.  I hope this is understandable and works for you.  Good luck!

Got it working.   Thanks for the help