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[quote]QUOTE: Originally posted by cwclark I still have 2 MRC 500 packs (gold and black paint) which I purchased in 1984 ..a bit rusty with lots of paint spilled on them from previous layouts but still work great!..from left to right as you look at the electrical connection screws...the first 2 posts are DC variable or the ones to wire to the track...the second two are DC constant..use that for 12v DC equipment or motor driven turnout machines and the last two posts are 16v AC..use that for AC accessories or coil type turnout machines...Chuck[:D] [/quote] Thanks for everyones help. Really do appreciate it. Will use the forum again when I need to.
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