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The Water Cooler
General Discussion
What type of welding is best?
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<blockquote data-quote="dennishoddy" data-source="post: 3300173" data-attributes="member: 5412"><p>The older lincolns had copper windings in the transformer coils. Pretty much 100% duty cycle. The newer ones have aluminum windings to make them lighter and cheaper with a 40% duty cycle if I remember right. What killed most of those older copper winding welders was that the fan would quit and the coils would burn up. A lot of folks used to put bigger fans underneath so they could weld all day, especially with the aluminum coil models.</p></blockquote><p></p>
[QUOTE="dennishoddy, post: 3300173, member: 5412"] The older lincolns had copper windings in the transformer coils. Pretty much 100% duty cycle. The newer ones have aluminum windings to make them lighter and cheaper with a 40% duty cycle if I remember right. What killed most of those older copper winding welders was that the fan would quit and the coils would burn up. A lot of folks used to put bigger fans underneath so they could weld all day, especially with the aluminum coil models. [/QUOTE]
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