In a particular embodiment, each stage includes a field effect transistor and {HEAD ~ the clipping device} is {TAIL ~ a diode} 
is
In a particular embodiment , each stage includes a field effect transistor and { HEAD ~ the clipping device } is { TAIL ~ a diode }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL