Depending on {TAIL ~ the desired frequency characteristic}, the resistor R1 and the two capacitors C1 and {HEAD ~ C2} can optionally be realized by means of the parasitic effects of the transistor 
Depending on
Depending on { TAIL ~ the desired frequency characteristic } , the resistor R1 and the two capacitors C1 and { HEAD ~ C2 } can optionally be realized by means of the parasitic effects of the transistor
REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH