We found this circuit in the September 1994 issue of Electronics Now magazine. The circuit uses off-the-shelf components and is powered by mains power.
This circuit was obtained in a documentation of the 80s, using operational of the time. The...
The circuit bellow uses two NPN transistor to drive heavy loads up to some amperes. The maximum...
This stage was found in a 1964 Electronic Design. The transistors are of the time and the shape of...