This circuit is from the Motorola LinearDatabook of 1990. It shows how it uses the LF355, 356 and 357 operational capacitive loads. The power supply must be dual.
This circuit uses a dual gate MOSFET and was found in an American 1980s documentation. The same...
This circuit mimics the sound of a siren when we turn the axis of the small DC motor. The...
A 25 mVpp applied to the input of this circuit produces in the output a 1 Vpp signal. The...