Push-Pull Amplifier Homework: Calculate Vcc, R Input & Gain

[Unskilled]

Homework Statement

1. Calculate Vcc and Vee(should be around 14-16).
2. Calculate the input resistance. (You should get a high value).
3. Determine the voltage gain. No calculation is needed.

http://img210.imageshack.us/my.php?image=effectampqe2.jpg


Ucesat = 1 V
Poutmax = 10 W
Rl = 8 ohm
Icq9=Icq11=40mA
Re=0.47 ohm
R8=R9=1000 ohm
Vbe=0.7V


2. The attempt at a solution
1. I used P=U^2/(2*R)=>U=sqrt(P*2*R)=sqrt(10*2*8)=12.65V
Vcc=U+Ucesat=12.65+1=13.65 but this is less than 14.

2.Here i don't know how to start.

3.I don't know how to solve this either.

 

[unplebeian]

Can you please repost a clear circuit. It's hard to see. Thanks.