This old circuit, from the 80's, uses an integrated circuit that is uncommon today. The circuit is intended for loads controlled by triac and the resistors depend on the desired control.
This circuit is intended for charging 12 V Nicad batteries, which corresponds to 10 common...
This circuit for discharging NiCad batteries limits the current to a value that can be adjusted in the...
This current-limited circuit was found in a Popular Electronics from the 90's. ...