The diode is non conductive during line scanning periods and conductive during {HEAD ~ that period} of {TAIL ~ line blanking periods} in which current peaks produced by the anti comet tail gun occur 
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The diode is non conductive during line scanning periods and conductive during { HEAD ~ that period } of { TAIL ~ line blanking periods } in which current peaks produced by the anti comet tail gun occur
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD 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