https://blog.model-train-help.com/2009/12/atlas-dwarf-signals.html?utm_source=rss&utm_medium=rss&utm_campaign=atlas-dwarf-signals Model railroads and model trains Fri, 23 Nov 2012 00:08:13 +0000 hourly 1 https://wordpress.org/?v=6.9.4 https://blog.model-train-help.com/2009/12/atlas-dwarf-signals.html#comment-557 Tue, 08 Dec 2009 03:59:35 +0000 http://68.171.208.138/~blogmode/2009/12/atlas-dwarf-signals.html#comment-557 You may need a 3 legged red/green diode make sure that it don’t draw over .020 milliamps also don’t forget to use a 680 to 1000 ohm resitor in series so you don’t fry it. the center leg is the commom wire if it don’t light switch the polarity and retest then install Alan C. Lompoc Ca.

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