{HEAD ~ The self oscillating drive arrangement} for the power switch has {TAIL ~ an inherent narrow bandwidth} that is tuneable over a wide frequency range 
has
{ HEAD ~ The self oscillating drive arrangement } for the power switch has { TAIL ~ an inherent narrow bandwidth } that is tuneable over a wide frequency range
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH