This setting is valid for other transconductance operational amplifiers. The circuit is from Motorola's 1990 Linear Databook. The power supply must be symmetrical.
We found this circuit in the old Mullard transistor reference manual from 1960. The circuit is...
This circuit was obtained in a Portuguese publication in 1979 but can be easily assembled today by the...
This circuit was found in a European publication from the 1980s. The transistors can be the BC548...