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