Found in a 1964 Electronic Design, this circuit protects the transistors of a complementary output stage. The diodes limit the current in the complementary pair.
We found this circuit in an old documentation from the 70s. The text is the original one of the...
The circuit shown in figure is suggested by Maxim in an application note. The operational...
We found this amplifier in a 1990 documentation. The transistors are common, having been made...