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Tool Talk Discussion Forum

Re: Lincoln AC/DC

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02-21-2013 06:50:54

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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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02-22-2013 15:34:32

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 Re: Lincoln AC/DC in reply to mkirsch, 02-21-2013 06:50:54  
Thanks for the info. Good to know it seems alot of fellows say they are able to handle more than the 20 percent duty cycle. Ive read the owners manual and found it has a breaker protector for DC welding but not AC. So I guess if I push it too hard it will just shut off on DC. I see Lanse using the Chinese welders but can't bring myself to buy one.
Thanks Bob

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