The parameters of the transistor in the circuit in Figure P6.12 are = 150 and VA = . (a) Determine R1 and R2 to

The parameters of the transistor in the circuit in Figure P6.12 are β = 150 and VA = ∞. (a) Determine R1 and R2 to obtain a bias-stable circuit with the Q-point in the center of the load line. (b) Determine the small-signal voltage gain Av = vo/vs.