Everything on model trains, model railroads, model railways, locomotives, model train layouts, scenery, wiring, DCC and more. Enjoy the world's best hobby... model railroading!

model scale railroad houses to construct ho scale n scale oo gauge

Atlas Dwarf Signals

Arnie wants help from readers and asks:

“I have followed the directions included with the Atlas dwarf signal included with the device. I am using Atlas switches. I can not get the light to change. It stays either red or green depending on how I connect the 2 leads from the signal to the switch. I can make them work properly eliminating the circuit board and using a relay, but I would like to use the circuit board. I have switched circuit boards with the same result. Any suggestions from anyone?”

Add your comments below.

One Response to Atlas Dwarf Signals

  • Anonymous says:

    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.

Leave a Reply

Your email address will not be published. Required fields are marked *

Add a photo or image related to your comment (JPEG only)

Reader Poll

Which scale of model trains do you operate or prefer?

View Results

Loading ... Loading ...

SUBMIT YOUR QUESTION

Download Your Free Catalog

Use Tiny Railroad Micro Controllers

N Scale Track Plans

Watch Video

Model Train DCC HELP

Model Train Help Ebook

NEW TO MODEL TRAINS?

FREE Tour Inside Club

Take a FREE tour inside the club.

Scenery Techniques Explained

Scenery & Layout Ideas

Model Railroading Blog Archive