Dallee #683 relay with included DC power source

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cpasam: I think that your trolley has no center rail pickup and gets it's power from the two outside rails. That means that you have to have isolated outside rails throughout. Standard O gauge track has the outside rails wired together through the metal ties.

You need to isolate one of the outside rails by placing insulation between the tie and the rail, just like the center rail. Be sure to use the same side for the isolated rail. Then you run your power wires to the two outside rails.

cpasam: On the other hand, the Dallee #683 instructions may be telling you that for 3 rail, you wire the relay to the center rail rather than the outside rail as they show in their wire diagrams.  Note that this device (station stop) will work with HO as well as O gauge track. So that should work.

Thanks. Fyi, my trolley does have center rail pickup rollers.

I ordered the Dallee device, so we shall see.

Right. I thought that maybe you had a two rail O gauge trolley and wanted to run it on regular 3 rail track. My mistake.

Just wanted to followup:

I just received and installed the Dallee Trak-DTT2 and its 12VPS power source and it works great: my bump and go trolley arrives near one end and pauses for the time set, then restarts with enough room to gain momentum, strike the end post, reverse and then go and do the same trick at the other end. Carefully following the diagram, I had everything wired in advance, insulated pins in place, etc. so there wasn't too much to do when the package arrived.  I have the electronics hidden inside a Lionel #132 station.