Signal help for the newbie

[scottso]

At the advise of another poster, I am moving this post here for your expertise!

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Greetings all.  I just pulled my father's 70+ year old standard gauge lionels out of my mother's attic for my kids to enjoy - as I did when I was a kid.  He always used to hook up a signal which would stop, and then ultimately release the train.

Problem is, my  father died a couple of years ago.  And while I still have the signal - he took the knowledge as to how it gets hooked up with him.  From what I can see it is referred to as a #78 block signal - it has a green and red light like a traffic light - and a three wire track connector.    I know the trick is insulating the track - but I can't remember how it is done.  Does anyone have any knowledge of this accessory and how it operates?

Thanks for any help to the new guy!

[BigJim]

Scott,

   Take your question over here;

http://www.trains.com/trccs/forums/95/ShowForum.aspx