{TAIL ~ Each} of amplifiers 76, 78, 80, and 82 may be identical to {HEAD ~ the embodiment} disclosed with respect to FIG 9 
{ TAIL ~ Each } of amplifiers 76 , 78 , 80 , and 82 may be identical to { HEAD ~ the embodiment } disclosed with respect to FIG 9
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH