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.
What differentiates this circuit from the many versions with the 4017, presented in our...
This is another possible version of a negative voltage generator using a 555 integrated circuit. The...
This circuit was found in Maxim's documentation from the 90's. The circuit provides 12 V x 120 mA....