Self-biasing JFET circuit (CB25563E)

This JFET amplification stage was found in the April 1993 issue of Electronics Now. The input impedance is 10 Megohms.

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...