a second oscillator in electrical input communication with {HEAD ~ said electrical output means} of said electrical energy source, said {TAIL ~ second oscillator} further having electrical output means 
a second oscillator in electrical input communication with { HEAD ~ said electrical output means } of said electrical energy source , said { TAIL ~ second oscillator } further having electrical output means
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH