Art of Electronics 3rd ed. Exercise 2.8
Supply: +15V,-15V
20Hz<f<20Khz
Iquiescent=5mA
Step1: choose emitter resistor
Remitter = U/Iq=30V/5mA=6K
Step2: choose base resistor (path to ground)
Rb=β*Re/10 =60K
Step3: choose C (high pass filter)
f3db << 20Hz
f3db=10Hz
Zin=Rb||β*Re=60K||600K=54.5K
C=292nF
