CE amplifier - How to limit bandwidth?

[sherrellbc]

When using the CE BJT amplifier configuration, when a shunt capacitor is placed across the collector resistor, how does this act as a bandwidth limiting cap?

 

[AlephZero]

Two questions to help you answer the question yourself:

What happens to the amplifier gain when you change the collector impedance?
What happens to the impedance of C5 at high frequencies?

 

[sherrellbc]

I see. Thank you very much for that. I did not think about the affect on RC and the associated gain.