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Reply to ""Universal" Motors: AC Vs. DC"

Bill Nielsen posted:

The American Models website states that their track is brass, not nickel silver, and they say it has better conductivity than NS (but they don’t mention that the oxidation that forms on brass inhibits it’s conductivity). The golden color of the AM tracks also suggests it is brass.

Bill in FtL

I have a very hard time believing that. Silver is the best metallic conductor. At 62.1 on Siemens conductivity scale

nickle come in right under brass, at 14.3 and 15.9 respectively. All other properties make nickle the better choice.

A nickle silver alloy would be ideal for track application.

low thermal expansion. More resistant to oxidation not to mention is a harder metal.

i don’t think they are comparing apples to apples.

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