Found in a publication by National Semiconductor, this circuit provides an output voltage of 3.3 V, ideal for supplying microcontrollers. The maximum current is 500 mA.
This very simple 1-transistor oscillator is from Raytheon's transistor manual of the 60s. The...
This circuit is from Radio Electronics from July 1983. The operational amplifier is of the...
This circuit was found in an old American documentation. It can operate with signals from 40 Hz to...