This configuration appears at several points in this section, obtained from different sources. This is from American documentation. The gain is 20 and the transistor can be a BC549.
This adjustable circuit from 0 to 200 nA was found in a 90's EDN. The components can still be...
We found this circuit in a technical documentation from the 70s. The MC1555 is nothing more than...
Based on common operational amplifiers, this circuit was found in Texas Instruments documentation. The power...