The HF current generator of an electrosurgical apparatus has {HEAD ~ one terminal} connected to {TAIL ~ an active electrode} and an additional terminal connected to a neutral electrode 
The HF current generator of an electrosurgical apparatus has { HEAD ~ one terminal } connected to { TAIL ~ an active electrode } and an additional terminal connected to a neutral electrode
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH