This circuit is from a 1967 publication. The configuration holds true for modern transistors having a feedback across R2.
USB58xx and USB59xx Devices Integrate a 2:1 Multiplexer to Support Reversible Connection of USB...
This circuit was obtained from an ancient American documentation. The coil consists of 80 to 100...
In the figure we show how to implement a voltage reference with the ON Semiconductor rail-to-rail...