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The primeweld TIG 325x has a low 5 amp start as well as great amperage range up to 325amps for thick aluminum.

I don't know of any other 325 amp tig welding machine that is this affordable and where the company has a great track record of customer support.

Learn more about the Primeweld tig325x on my store here https://weldmongerstore.com/collectio...

I showed the rule of 33 pulse settings for thin steel where pulses per second, background current, and pulse width are all set to 33. The rule of 33 is a great way to remember good starting point for high speed pulse settings.
I used a low AC frequency of 50 hz on the 1/4" thick aluminum corner joint because I like lower frequency settings on thick aluminum corner joints.

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