However, both current sources 47, 49 share the same leads for current return, i.e., the leads depicted as {HEAD ~ columns} in {TAIL ~ the array} 
in
However , both current sources 47 , 49 share the same leads for current return , i.e. , the leads depicted as { HEAD ~ columns } in { TAIL ~ the array }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL