The resistor R1 and the two capacitors C1 and {TAIL ~ C2} serve to dimension {HEAD ~ the circuit} 
The resistor R1 and the two capacitors C1 and { TAIL ~ C2 } serve to dimension { HEAD ~ the circuit }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD