This circuit was found in an Electronic Design. The circuit can be programmed to operate in different frequency ranges with the indicated characteristics. The IC component is uncommon today.
This Intersil circuit was found in a 1980s documentation. Operational are of the time, but current...
Under this name, the popular electronic magazine of major/June 1969 introduced a simple...
We found this circuit in documentation from the 90s. It is a common configuration that is given in two...