This 13 A V power supply with 2 A uses a transformer with 12 V of secondary and 2 A of current. The diodes can be 1N5404 or equivalent for 2 A or more.
We found this circuit in the April 1975 Radio Electronics magazine. The circuit has a latch and...
We found this sophisticated home alarm in a 1994 documentation. The circuit supports sensors of...
This circuit was found in the 1991 Electronics Experimenter's Handbook. It activates a relay when...