As shown in FIG 3, the iron core 11 is formed of particles 14 of iron or {HEAD ~ an iron based magnetic material} filled in {TAIL ~ a casing} 13 which is made of an insulating synthetic resin such as phenol and nylon 
filled in
As shown in FIG 3 , the iron core 11 is formed of particles 14 of iron or { HEAD ~ an iron based magnetic material } filled in { TAIL ~ a casing } 13 which is made of an insulating synthetic resin such as phenol and nylon
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH