Using the 4001 integrated circuit, this latching relay can employ any general-purpose transistor. The power supply is according to the relay with voltage up to 12 V.
January 2017 - Mouser Electronics already has the new Ultra Low Drop controllers from Toshiba...
This circuit was obtained from an American documentation from the 90's. Inductors are critical...
This simple circuit of low power with an LM386 includes the highly sensitive audio preamplifier...