He explains it in his own words in the demo video. The sensor was small enough for an N-gauge train, which translates to 1:148 scale or about 9mm from rail to rail. His idea was to build a tiny ...
Trains.com on MSN7d
N scale Alco RSD5 from AtlasThe N scale Alco RSD5 from Atlas is now offered with an ESU LokSound V5 sound decoder and an upgraded chassis.
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