Bob has an HO train layout and has some DCC wiring questions you might be able to help him with:

“I have been getting different answers re DCC wiring. Some folks have said that you only need one wire and others say that you need 2 – one for each rail. Can someone clairfy this for me? Also, what gauge wire should I use? My layout is about 12′ X 12′ with double track around the perimeter of the room and I have the controls from one end of the layout. Do I need a booster as well?”

John asks a question on gradient:

“Can one of your readers please tell me the suggested minimum gradiant for a HO track?”

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