End 45 of sleeve 42 sits against {TAIL ~ shoulder} 33 or center conductor contact 31 so that the position of pointer 44 indicates the position along an axis A of {HEAD ~ shoulder} 33 relative to end 321 
End 45 of sleeve 42 sits against { TAIL ~ shoulder } 33 or center conductor contact 31 so that the position of pointer 44 indicates the position along an axis A of { HEAD ~ shoulder } 33 relative to end 321
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH