Lastly, the amplification circuit amplifies {HEAD ~ the input voltage} to produce {TAIL ~ the amplified voltage} 
to produce
Lastly , the amplification circuit amplifies { HEAD ~ the input voltage } to produce { TAIL ~ the amplified voltage }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL