My layout is an oval about 4X7. Part of the oval is a staging area. Mine is developed so that 2-3 people can operate. One as the staging person and 1-2 doing operations. Since there will be more than one person operating, I elected to sub-divide my layout into 4 zone. The booster feeds a PM-42 to power the 4 zones. This is to keep from one operator accidentally shorting the track and shutting down the entire layout. Each zone has a run of 14 gauge wire running the entire length of the layout. Track in each zone is connected with 22 gauge wire via snap-on connectors.
On Friday, January 31, 2025 at 03:56:49 PM CST, Mark Wescott via groups.io <markwescott1829@...> wrote:
How does one determine the ¡°length¡± of a layout when it is a oval? Total run of track (doubled for a 2 track main); or total linear distance from one end to the other?
Are the terms ¡°small layout,¡± ¡°medium layout,¡± and ¡°large layout¡± defined?
I am asking because I have a Power Cab and would like to know if I need a booster or two.?
On Fri, Jan 31, 2025 at 11:30?AM Allan AE2V via <bigboy=[email protected]> wrote:
Hi John,
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If you have two booster outputs tied together, definitely stop that immediately.
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If you layout is 75 feet long (I do not know what you mean by "current point."), I would break it into two districts and locate a booster at the middle of each one.? Do not stagger your gaps by 6".? I've never staggered gaps between booster districts.
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Connect the cases of your boosters together with at least a 16 gauge wire.? It's hard to get a heavy gauge wire under the screw of a case, so I have a terminal strip next to my boosters.? I run a short (about 8") 18 gauge wire and then run 14 gauge wires between the boosters terminal strips.
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Since your distance from your boosters to the end of each booster district is only about 19 feet, you probably don't need snubbers, but if you do find you need them or want them, they would go at the end of each booster district.
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Nickel silver track is a steel allow.? It does not contain silver and I don't think it has any nickel either.? It gets its name from the color of the metal.? Place track feeders about every 6 feet.
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For more on layouts, see my book, "DCC and Model Railroading" (available from Trains.com or Amazon, Walthers, or Ron's Books) and my website, .