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Overview
This is a picture of the front of a Miller Syncrowave 350LX welding power source for Gas Tungsten Arc Welding and Shielded Metal Arc Welding. This machine has the ability to change direct current polarities as well as to change from direct current to alternating current welding current with rotation of the switch in the center of the picture. Do not switch under load is labeled below the switch because operation of the mechanical switch while the high welding current is flowing through it will cause arcing and destruction of the switch components.