We found this test circuit in the November 1999 issue of Electronics Now magazine. The circuit is to be connected in series with a load rated for the diac current.
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...