Lamp Control (CB25902E)

This low-current control circuit has a lamp as a load, but can have other types of devices, such as a relay, thus forming a shield.

White Noise Generator With the 741 (CB401)
This circuit uses a transistor as noise source and a 741 IC as amplifier, sourcing a high...
Liquid Level Detector (CB5316E)
This simple circuit detects when a conductive liquid reaches the sensors. The circuit has no...
Transistor Characteristic Checker (CB3903E)
With this circuit it is possible to raise the characteristics of a transistor by checking its gain...