{TAIL ~ Each supplemental energy source} includes {HEAD ~ circuitry} for repetitively storing a predetermined quantity of supplemental energy and circuitry for detecting a start of a primary energy pulse and in response thereto, for discharging the restored supplemental energy into the conductors 
{ TAIL ~ Each supplemental energy source } includes { HEAD ~ circuitry } for repetitively storing a predetermined quantity of supplemental energy and circuitry for detecting a start of a primary energy pulse and in response thereto , for discharging the restored supplemental energy into the conductors
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH