Posted by Joseph Yarbrough on August 30, 2009 
Three generations of Amtrak power...thanks for sharing.
Posted by Philip Martin on August 30, 2009 
The S-4T horns that the SDP40s were equipped with were known to fail, and when that happened, they were sick sounding horns, and they needed regular maintenance to stay 'alive'. Hmmm....I wonder what those two guys are doing on the SDP40, where the horn is... :)
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