This automotive circuit was found in the June 1997 issue of Electronis now magazine. The circuit uses a common operational amplifier powered by 12 V.
With the coded activation of the relays, it is possible to control which of the 16 outputs...
The integrated circuit used in this application is not very common. Transistors and resistors...
This simple circuit makes use of neon lamps to indicate the voltage of a power grid. The lamps are...