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