The circuit shown indicates voltages from 10 to 14 V used to monitor automotive voltage. One or two LEDs light up depending on the voltage.
Indicated at the time of publication as a “walk man” for MW radios, this circuit is simple and can...
Although it is a circuit from the 80s, it can still be easily implemented today because the...
In the figure we have a bistable multivibrator using an operational one. The circuit is from old...