Re: Resistance Leak from Fast Track turnouts
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I'll echo what Gary says. I don't see any way that current gets from top to bottom copper unless a bit of solder crossed the gap or something else (??). Then the resistance would be tiny and an easy path from top to bottom, and there would be a definite short circuit. Does the substrate conduct? It shouldn't, as proved by zillions of pc boards in use. Can you decompose it? I doubt it, but I guess that's a (unlikely) possibility. Incidentally, if you check for continuity with a checker, there should be no connection.
I'll also echo the soldering technique. Heat the rail with your iron, not the pc tie. You may have to touch the tie for a moment, but that is all. The copper foil can peal off the substrate with too much heat.
I have installed hundreds of pc ties. Each time that I have had continuity where I didn't want it, I have found a metal bridge where I shouldn't have had one. Once removed, the continuity was zero and the resistance infinite.
On Mon, Mar 2, 2020 at 7:16 AM Gary Chudzinski <chudgr@...> wrote: