This Star Trek red alert circuit was found in the July 1990 issue of Radio Electronics magazine. The power transistor must be equipped with a heat sink.
The circuit shown is from the 1994 Linear Applications Handbook by National Semiconductor. The...
This circuit was found in a 90s Radio Electronics. It is intended to amplify the sound channel of...
This circuit was obtained in the 1990 Motorola Linear Databook. The circuit uses a 139 series...