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