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Tortoise Switch Machines
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A couple of other good things: <br /> <br />They used to be guaranteed for life. Now they're "only" guaranteed for nine years. I've had 90 or so for years, even bought some used via eBay that looked terrible but worked fine, and had only 1 bad one. Didn't seem worth sending it in. <br /> <br />There are two built-in relays, single-pole double-throw. They can be used to properly power a frog, or to power a siding only when the switch is thrown, or to drive signals. <br /> <br />You don't necessarily need a train type power pack -- a simple plug-in transformer from Radio Shack or the like works just fine. I have a pair of 9v, 1800 ma units, each powering about 40 Tortoises. (I use 9v instead of 12v to make them run a bit slower.)<b></b><b></b><b></b><b></b><b></b>
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