Thread: Wig Wags?
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Old 12-10-2007, 08:23 PM   #2
Ween
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Are you talking about ditch lights that alternate back and forth in intensity or the crossing signal? If it's the signal, here's a good description:

http://en.wikipedia.org/wiki/Wigwag_%28railroad%29
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Last edited by Ween; 12-10-2007 at 09:36 PM.
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