I am fairly confused on how to do parts A and B. We do not need to do C. VA can be ignored and T-model is to be used for the AC analysis. Will upvote. Thank you!
6.77 The transistor parameters for the circuit in Figure P6.77 are β = 120, β2 = 80, VBE1on = VBE2on = 0.7 V, and VA1 = VA2. (a) Determine the quiescent collector current in each transistor. (b) Find the small signal voltage gain A = vo/vs. (c) Determine the input and output resistances Rib and Ro.
Chapter 6 Basic BJT Amplifiers
VcC = +10V
Rc = R = 2.2 kΩ, 335 kΩ
Ro
Q
125 kΩ
RE2 = 1 kΩ
Figure P6.77
Figure P6.78