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Ahh, I thought I was being so clever.  Experimenting with a Soundbug in a box car and powering it with track wipers. All seemed well.  Speakers and decoder work fine.  Problem seems the wipers.  I am using these ones from Richmond Controls.  I even created a split effect so each truck would pick up power from both tracks.  Well, performance is intermittent.....especially problematical over switches. Now I had thought I had these pretty well configured like a locomotive, and even though the locos have flywheels to help them cruise along, these should have worked better. Any suggestions on best wiper techniques to use?  As you can see, these are adequately in contact with the pickup axles.  There is no cross contact between wipers at all.  Track is clean.  Locos run fine in towing this.  In these photos I have rearranged the wiring and axles to pickup from only one track per truck as a test, but this was no better.)  Perhaps the weight was too light, but they are weighted more than most steam tenders on the layout. I supppose the best arrangement would be to adapt some socket and hub pickup from the actual axle end like a loco. Maybe I can makeup some kind of pickup from loco leftovers.   <img src="http://i168.photobucket.com/albums/u172/dcrane_2007/wiper1_zps6ce1cfd4.jpg" alt=" " /> Even this one that looks crooked is only contacting the correct wheel. <img src="http://i168.photobucket.com/albums/u172/dcrane_2007/wiper2_zps156ad194.jpg" alt=" " />
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