In a class C amplifier (Figure A), every time the transistor turns on in every "pulse", the collector current becomes saturated. This charges the capacitor to its maximum (Vcc). This capacitor will always get charged to its maximum, independent of the input signal frequency.
So why does the output voltage reduce when the frequency is below or above its own specific resonating frequency? (Figure B)
I mean, whether the input frequency is in resonance or not, the capacitor will always get charged to the fullest when the transistor turns on, thus swinging the tank circuit to peak Vcc. So why is the output voltage damped when it is beyond the resonance?