This configuration can be found in several articles on this site. The one shown in the diagram is from the datasheet of the LM101 series amplifiers, but it can be implemented with other types.
The purpose of this circuit is to test power supplies functioning as a variable load that can...
This circuit found in the October 1975 issue of Radio Electronics magazine uses an integrated...
We found this circuit in an old Argentine publication from the 1970s. The transistor can be the...