For a current of 5A and a supply of 6 V this circuit was found in documentation from the 70s. Transistors admit modern equivalents. Q1 is a PUT uncommon today.
This circuit is from an old publication from the 70s, but it can be implemented with more modern...
This circuit was found in an American 80s circuit manual. The components used are unusual. The...
We found this circuit in a 1976 documentation. The transistor and the integrated circuit must have...