oldnick Rigid Member Messages 12 Mar 23, 2017 #1 So, the wire feed on my 105T works a treat, right up to the point where I strike an arc. Why would the zener diode on the pcb (MIG03B) short out but only when the arc is struck? Transistor is fine, and all other components seem ok.
So, the wire feed on my 105T works a treat, right up to the point where I strike an arc. Why would the zener diode on the pcb (MIG03B) short out but only when the arc is struck? Transistor is fine, and all other components seem ok.