In Reply to: designing of single tuned amplifier circuit posted by saravanan on 11/01/03 at 9:27 AM:
For the center frequency: F0=1/2/PI/(L*C)^.5
Q = 2*PI*(energy stored)/(power dissapeted per cycle)
Q = 2*PI*F*(energy stored)/(power dissapation)
Q = F0/BW
energy stored = (1/2)*C*V^2
Depending on the losses in the coil and capacitor, you will have to put a resistor in parallel with the L-C tank to obtain the desired Q.
Put a resistor in the emitter circuit of the amplifier transistor that is 1/50 of the impedance of the L-C tank circuit.
I designed a circuit using a program that can be downloaded from my website: http://www.geocities.com/russlk.
I will email the circuit to you.