When the opening portion of the casing is closed with the closing member, both end {HEAD ~ faces} in {TAIL ~ the longitudinal direction} of the secondary core formed in the primary bobbin face to the inside peripheral surfaces of the primary core 
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When the opening portion of the casing is closed with the closing member , both end { HEAD ~ faces } in { TAIL ~ the longitudinal direction } of the secondary core formed in the primary bobbin face to the inside peripheral surfaces of the primary core
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 TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH