This is the typical circuit of a local oscillator for a superheterodyne FM receiver. The circuit was found in a 1980s documentation and is typical of early and early receivers.
This circuit is from Motorola's 1990 Linear Databook. We can implement it with other operational...
The circuit shown in the figure can be used on a data transfer bus using an appropriate family...
This page shows a crystal oscillator for 2 MHz. Other frequencies can be produced depending on the...