This circuit indicates when the voltage of a 12 V battery is low. With changes, for example, the zener, the circuit can be used to monitor other voltages.
We can use high value electrolytic capacitors in alternating current circuits with the...
In the figure we have the way to use power transistors as rectifiers in a source, replacing common...
This circuit can measure frequencies up to 10 kHz using a digital multimeter or the 7107. The...