This amplifier is from Motorola's 1990 Linear Databook. The circuit can be used with operating amplifiers with the same characteristics and the power supply must be symmetrical.
This circuit was obtained from an American publication of 1982, but can be easily assembled today...
This noise generator uses the thermal noise of a common diode junction. The circuit is from an...
We found this circuit in the July 1994 issue of Electronics Now magazine. The circuit can use...