I am trying to indicate with a two-light dwarf signal the position of my switches on my layout. Can I do this without an expensive circuit board? Thanks!
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Would need to know what brand of switches they are as it depends.
Atlas
Since Atlas doesn’t have constant power to the switch machine I would use an Atlas Snap Relay attached to the same momentary button that goes to the switch. Then on a separate constant circuit wired to the relay you could use a red and a green bulb to show position.
The snap relay has two input/outputs so if you wanted to you could connect dwarf signals on both output ends of the turnout. When one goes green the other can go red.
Thank you for the help!
