When i supply my signal at the input of the common base transistor,i directly measure the input using oscilloscope. To my dismal, the signal attenuates, is it becasue of the low input impedanc eof the transistor? Loading effect?

 

What do you mean by common base emitter?

 

When i supply my signal at the input of the common base emitter, i directly measure the input using oscilloscope. To my dismal, the signal attenuates, is it becasue of the low input impedanc eof the transistor? Loading effect?

What do you mean by common base emitter?

I am aorry my mistake it os common base transistor

 

It would help us to help you if you provided a circuit schematic.

 

It would help us to help you if you provided a circuit schematic.

 

I straight

View attachment 73223

measure the input at i but the 25 mv attenuate before it even enters the transistor, my teacher say it happens because of a reason but i duno what is that reason

 

Did you try to run a simulation?