Found in a Motorola documentation from the 70s, this circuit makes use of transistors of the time. Modern equivalents can be used. The diode also supports an equivalent.
This circuit was obtained in an old American publication from 1974. The supply must be made with 5 V...
Currents of a few milliamps are enough to drive loads up to 500 mA with this circuit. The...
Published with a power amplifier in the January 1985 issue of Radio Electronics, this circuit...