This simple circuit is a continuity test that, in addition to testing resistors, can also test other components. Power is provided by batteries and the LED can be of any color.
This switching boost regulator, which provides a 24 V output from a 12 V input, was found in the...
This circuit time the activation of appliances and electronics when the power is cut, thus...
This FM detector circuit was found in a 1977 documentation. The circuit uses a 1977 Signetics...