The operational 714 (not the 741) is an old Raytheon type that is no longer common today. The circuit can be implemented with modern operational. The power supply must be symmetrical.
This circuit has four-time programming keys, according to the table given next to the diagram. The circuit...
This conventional power supply uses discrete components and can provide 12 V or 13.6 V output with...
In the figure we have the diagram of an amplifier stage using transistor and a 6AQ5 valve. The...