This circuit was found in a 1967 RCA documentation. The components are of the time. The circuit limits the current to 50 mA when the battery is fully charged.
This circuit is from an Electronics World of 1964. The circuit can be made with modern...
We find this circuit in a Radio Electronics of July 1984. It consists of the traditional version of 1 A...
This circuit was found in the June 1990 issue of Radio Electronics magazine. The maximum current is 1...