This circuit was suggested by General Electric in a 1969 documentation. The transistors are of the time and the power supply is not given. Note the high supply voltage.
This circuit was found in Radio Electronics magazine from November 1960. The circuit is powered by a...
In the figure we have an application in which the input and output voltage are equal, with the...
We found this circuit in a Radio Electronics from the 90s. The circuit is for conventional analog...