Here is what Ratch is saying:
"Right now, with that high base resistance (100 k) in Q1, almost all the Icbo will go through the base-emitter junction of Q1, and get betatized into a much larger current. You should take out Rb, and put in an emitter resistor Re. The emitter resistor will look like (beta+1) Re from the base, and the Icbo will exit harmlessly through the base instead of entering the base-emitter circuit. Then you can adjust Ie=Ic by 2/((beta+1)*Re)"
He is turning the first transistor into an emitter follower. But the input voltage is just 2v.
How is he going to get his suggestion to work ?????????????
"Right now, with that high base resistance (100 k) in Q1, almost all the Icbo will go through the base-emitter junction of Q1, and get betatized into a much larger current. You should take out Rb, and put in an emitter resistor Re. The emitter resistor will look like (beta+1) Re from the base, and the Icbo will exit harmlessly through the base instead of entering the base-emitter circuit. Then you can adjust Ie=Ic by 2/((beta+1)*Re)"
He is turning the first transistor into an emitter follower. But the input voltage is just 2v.
How is he going to get his suggestion to work ?????????????