Wiring an alternating light crossing signal

Model Railroader Layouts and layout building
1

Hello,
Im new to this forum but not to mrr…I am building a new layout that will have operating grade xing signals…I need to know what other parts I neeed for the signals to make them alternately flash(Like the prototypes) and wiring instructions…Can some one help? I have looked at some commercially available books but none specifically addr.crossing signals…I want them to flash only when the trains are occuping the crossing…I look for someone to help me…Thanks for your attention,Danny

2

i dont know how to make it but to make it flash when u want to u could have a single pole single throw (SPST) toggle switch mounted on the side and flip it when train is coming

3

A Peter Thorne book ( cant recall the name ) had some simple circuits for grade crossings.

What your needing is two things :

Detection : spaced so far from each side of the crossing, to detect a train

Flasher : once detected, the circuit alternates the lights or LED’s.

Others may recall the name of the book, but I remember the circuits were simple and would be easy using a 555 timer chip.

Randy
Virginia Southern

4

Check these out!

http://www.mrollins.com/circuit.html
http://www.discovercircuits.com/M/model-trains.htm
http://www.cwrr.com/nmra/Modelb-Elec.html

Terry[8D]

5

Automatic Railway Grade Crossing Flashers With Prototypical Operation
Bell Ringer Circuits

6

Hey Guy’s,
Thanks for all your help and recomdations.I will try to find some of these and get started…Danny

7

Here on some commercial people that sell signals.

http://www.customsignals.com/SignalSystems.asp
https://sunrisent.c2.ixwebhosting.com/index.html
And my personal favorite. http://www.njinternational.com/

8

This is great guys! I was also looking for information on wiring crossing flashers and detection units myself!

Keep it coming if anyone has any more info to share… :slight_smile:

Thanks!

9

Circuitron sells all you would need. Although I don’t think they have a web presence, you can find their products at Walthers and many other suppliers, for instance Bakatronics at:

http://www.bakatronics.com/shop/category.asp?catid=140

-Ed

10

Here’s what I use:

http://www.dallee.com/FlasherDT.htm

Great combination crossing flasher and detection unit.

Steve Troy