{HEAD ~ Current} from {TAIL ~ this current source} is applied to load resistor 176 coupled between the collector of transistor 168 and ground 
from
{ HEAD ~ Current } from { TAIL ~ this current source } is applied to load resistor 176 coupled between the collector of transistor 168 and ground
HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH