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 90's Radio Electronics circuit uses uncommon integrated circuits today. The circuit is...
The integrated circuit used in this configuration of the 1990 Motorola Linear Databook is not...
This circuit, from an American publication of 1974, provides a 0.005% regulation with a variation of...