First of all 7014 is not a low hydrogen rod. It is an iron powder type rod. Secondly, on an AC machine, there is no such thing as reversing the polarity. AC means alternating current. 7018's made specifically for AC machines will work better on them than the standard 7018. That's why they make them. A standard 7018 is designed to be used on DC reverse polarity or AC current but on the cheaper AC welders, they can be more difficult to weld with than the 7018 that are made especially for AC machines. 7018 are usually the only rods that are stored in a rod oven. 7018 are low hydrogen rods and way stronger than 7014. As long as other rods are kept dry, they shouldn't have any problems. Some rods like 6011 or 6010(DC) can dry out too much. 6011 although a rougher looking weld will be easier to strike an arc with using an AC machine. Dave
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Today's Featured Article - Adding an Hour Meter - by Steven Gussey. This article tells how I added an electric hour meter to my 1942 Farmall H after rebuilding it. I wanted to keep an accurate maintenance schedule for my rebuilt engine and the implements I use with my tractor, but the H was never available with a tach
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