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