Posted by mkirsch on February 21, 2013 at 06:50:54 from (22.214.171.124):
In Reply to: Lincoln AC/DC posted by bobpa on February 18, 2013 at 14:34:17:
I don't think the 75 Amp setting is 100% duty cycle anymore.
My early 1970's era tombstone has the 75A setting circled, but new ones at Home Depot do not.
Lanse has a Longevity Stickweld 250 which has a 100% duty cycle up to 200 Amps if I'm not mistaken and 60% at 250 Amps. It's around $500, so not much more than a Lincoln AC/DC tombstone. It's made in China so if that's a problem for you it may not be an option.
My Lincoln has been pushed way past the 20% duty cycle on many occasions over the last 40 years and it's still kicking. The only problem it's had is the cooling fan went bad. I replaced it with a large 220V muffin fan from Mouser Electronics.
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