Applying an operational of the time, this circuit of an old documentation can be elaborated with modern operational. The feed must be symmetrical.
This circuit using an operational amplifier was found in old American documentation. It can be...
This beat frequency oscillator was found in a 1980s documentation. The original FET has a grounded...
Found in the August 1994 issue of Electronics Now, this CMOS circuit uses the 4046, which is...