{HEAD ~ A magnetic member} 2 for an nonreciprocal circuit is fitted in {TAIL ~ the large hole} and a magnetic member 3 for frequency characteristics regulation is fitted in each of the small holes 
is fitted in
{ HEAD ~ A magnetic member } 2 for an nonreciprocal circuit is fitted in { TAIL ~ the large hole } and a magnetic member 3 for frequency characteristics regulation is fitted in each of the small holes
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH