This circuit generates sinusoidal signals between 300 and 3000 Hz. We find a 303 Circuits from the 90's. The operational ones are types with FET. The power supply must be symmetrical.
This timebase was found in a European 1980s documentation. The circuit uses well-known components...
Found in a General Electric documentation from 1970, this circuit consists of a relaxation...
This clipper or limiter circuit limits the amplitude of AM or FM audio signals. The diodes are...