This circuit was found in a 1970 IEEE publication. The circuit functions as a voltage controlled variable resistor and can be used with audio signals. Transistors admit current equivalents.
This two-stage amplifier hás a high impedance input and excelent voltage gain. It can be used as a...
This excellent amplifier, found in a 1986 documentation, provides good power and is powered by a...
The figure shows how to couple two CMOS circuits using an optical coupler to achieve isolation. The...