This oscillator can generate 2 to 10 MHz signals and was found in an American 1980s documentation. The circuit is stable and its supply voltage is 5 V.
This is the basic configuration of an operational amplifier sample & hold circuit. The FET and...
This brightness control for incandescent lamps or engine speed has been found in a 1970 English...
Found in National Semiconductor documentation from the 90's, this circuit has an output current of...