To {HEAD ~ this end}, a further goal of the invention is an electrical circuit capable of storing electrical energy and capable of stepping up and discharging the stored energy in two frequencies in a series of pulsating, {TAIL ~ discharges} 
To { HEAD ~ this end } , a further goal of the invention is an electrical circuit capable of storing electrical energy and capable of stepping up and discharging the stored energy in two frequencies in a series of pulsating , { TAIL ~ discharges }
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