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