It is a 13.8 V x 10 A regulator obtained in a 2008 documentation. The 2N3055 transistors must be mounted in excellent heat sinks and the voltage is adjusted in the trimpot.
With this circuit, a relay can be activated from an alternating signal with frequency up to a few...
With this circuit the visually impaired can easily locate important places inside the house, such...
In the figure we have the way to use the transistors of an old-paired pair as a trigger circuit. The...