According to a first embodiment of the invention a welding machine includes {HEAD ~ a power source} and {TAIL ~ a wire feeder} 
According to a first embodiment of the invention a welding machine includes { HEAD ~ a power source } and { TAIL ~ a wire feeder }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL