This circuit was found in an article in Radio Electronics magazine. The issue is from July 1992 and the circuit uses components that are common today.
Found in a 90’s Electronic Engineering, this circuit tests the three phases of such a supply. The...
This circuit was obtained from Linear Technology's own component manual of the 1990s. The circuit...
We found this circuit in a 1965 Electronic Design. Transistors are still common but admit...