This circuit detects when a powered circuit suffers a malfunction, lighting an LED. The supply voltage can be changed according to the monitored load.
In this circuit found in a 1991 publication we can use the 2N2646 unijunction transistor and the...
The circuit shown in the figure can act as a home repeater for AM signals from the output of an...
This circuit consists of a traditional amplifier version with complementary output using BD series...