{TAIL ~ An apparatus} 1, wherein said second contact member is comprised of {HEAD ~ ceramic} at least at its terminating end 
{ TAIL ~ An apparatus } 1 , wherein said second contact member is comprised of { HEAD ~ ceramic } at least at its terminating end
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH