The loads are coupled to {TAIL ~ the pulsed, primary source} by {HEAD ~ a pair} of conductors 
The loads are coupled to { TAIL ~ the pulsed , primary source } by { HEAD ~ a pair } of conductors
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH