Found in documentation from the 1980s, this circuit uses a SG1524. It is an uncommon integrated circuit nowadays. The circuit provides a current of 20 mA with a symmetrical voltage between 15 and 18 V.
In the figure we have a battery charging circuit for currents up to about 5 A. In series with the...
This circuit with the NE602 was found in the February 1997 Electronics Now magazine. The NE602...
This circuit was found in a 1967 General Electric manual. It is intended for the control of high...