This dual-gate FET RF signal mixer circuit was found in a 1980s documentation. The circuit is intended for applications in superheterodyne receivers of the time.
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...