A resistor RC = 470 Ω is added to the network of Fig. 5.181 along with a bypass capacitor...

A resistor R_C = 470 Ω is added to the network of Fig. 5.181 along with a bypass capacitor C_E = 5 ¼F across the emitter resistor. If β_D = 4000,  and  for a packaged Darlington amplifier:

a. Find the dc levels of  and

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b. Determine Z_i and Z_o.

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c. Determine the voltage gain A_v = V_o/V_i if the output voltage V_o is taken off the collector terminal via a coupling capacitor of 10 ¼F.

FIG. 5.181