The circuit shown uses an unusual regulator currently, which is the LM2935, which must be mounted on a heat radiator. The circuit is from Motorola's Linear Interface ICs.
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...