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Established 1994
Pittsburgh Garden Railway Society C/O Ann Celento 312 Hawthorne Street Canonsburg PA, 15317
August 2014 Newsletter
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Tech Tips Dave Bodnar
Crossing Controller
As was mentioned in Keith's notes I have an article on crossing controllers and similar circuits in the August Garden Railways. Here is a link to a more sophisticated unit that I designed a few years ago:
http://www.trainelectronics.com/CrossingSignal-MultiFunction/index.htm