{HEAD ~ The control electronics} further contain means for switching the electronic power switch off during at least parts of {TAIL ~ at least individual pulses} 
{ HEAD ~ The control electronics } further contain means for switching the electronic power switch off during at least parts of { TAIL ~ at least individual pulses }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL