This emitter follower simulator circuit was obtained in a 1964 documentation. The circuit can be designed based on a modern transistor.
We found this circuit in a 1990 documentation. The operational amplifiers are type 741 and the LED is...
This circuit was found in a 1968’s publication and uses germanium transistors. Equivalents can be...
This 5 V circuit was found in December 1978 Radio Electronics magazine. The power transistor must...