Found in a 1970 American publication, this circuit uses transistors of the time. These transistors may be replaced by current equivalents. The factor Q is greater than 3 000.
This configuration can be applied to other transconductance operationals. The circuit has a gain...
This ring circuit was found in the April 1959 Radio Electronics magazine. The capacitors are...
The diagram is from a 1990s document. The integrated circuit must be equipped with a heat sink. The...