Amplifier

[ramankr48]

in common emitter amplifier when Rc is removed by a coupled transformer then why the output of circuit is not amplify like the original ce amplifier even i am removing the Rc.
pls answer this question

 

[(*steve*)]

Do you mean "replaced by a coupled transformer"?

It is always helpful if you or both circuits.

Is this homework?

 

[ramankr48]

yes "replace by a coupled transformer"
actually i am doing a project, making class AB amplifier using transformer, but the problem is after replacing the collector resistance with transformer(made using two inductors in LTspice) then output signal is not amplifying.

 

[kellys_eye]

When you bias the transistor for a specific Rc and CHANGE Rc, what do you think you may need to do?

 

[Audioguru]

A transformer was used in a class AB amplifier circuit 63 years ago. Why are you using a transformer today?
Here is a modern circuit with no transformer: