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I don't have mixing valves, just standard regulators with flow meters, just set the pressures on the 2 regulators with in a few PSI of each other and plumbed them together.
A spool gun is good for 2 things.
Its good for aluminum because soft weak aluminum does not like to feed through a MIG welder handle at the high wire feed speeds that you run aluminum at. It tends to break.
Its also good for switching between fillers, they can save a lot of time if you find your self spending a lot of time switching back and forth between different rolls of wire.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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