Quoting Removed, click Modern View to seeI believe you would be right if what you were lifting was magnetic, but if lifting plain chunks of steel they won't care about the polarity, and will be attracted by both cycles. DC will be more efficient and lift heavier loads because it does not have the part of the AC cycle that is null. Besides the theory part, I have played around with electro magnets, both commercial ones and ones I wound myself. They worked on AC. That was many years ago, and at that time I did not have a DC supplye to power them. I was fairly young and never thought of connecting to a tractor battery.
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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