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 the Motorola Linear Databook of 1990. The values of the components depend on the...
This circuit was found in an old American documentation on telecommunications. It is suitable for...
This circuit, suitable for tube equipment, was found in an old documentation. It uses a high...