Checkers are known for not holding up well in
the field. This one has a strobe light in the red section. It is kind of hard to
see the strobe tube in the above animation. 8 inch Checker heads look a lot like 8 inch
Eagle flat back signals, except for the logo on the back. Below are a couple
pictures showing the strobe tube which flashes 1 flash approximately every 1 to
2 seconds.
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