Found in a 90s 303 Circuits, this circuit aims to provide a soft start for a low voltage halogen lamp. The MOSFET supports an equivalent.
In the figure we have the way to implement an Exclusive OR or XOR gate with CMOS or TTL...
The basis of this circuit is the 723, an old integrated circuit not easier to find these days. The...
This circuit is from old documentation, but the regulator may be 78xx series equivalent and the...