Third times a charm, I created and deleted two videos yesterday, but now am confident this works after some more tests. I use the locomotive as a current limiting resistor to forward bias a non transistor. A capacitor is installed across the emitter and collector to prevent noise( not show in this video, discovered last night). A 5 volt relay is then installed between + voltage and the collector. Outputs of the relay will powers anything you want, I’m powering a sound board in this video.
#trains
#nscale #modelrailroad