The component values in the circuit of Fig. P 7.99 are VCC = 9 V; RL = 3 kΩ; C1 = C2 = 2 nF; and R1 = R2 = 18 kΩ.
 a) How long is T2 in the off state during one cycle of operation?
 b) How long is T2 in the on state during one cycle of operation?
 c) Repeat (a) for T1.
 d) Repeat (b) for T1.
 e) At the first instant after T1 turns on, what is the value of ib1?
 f) At the instant just before T1 turns off, what is the value of ib1?
 g) What is the value of vce2 at the instant just before T2 turns on?