The diagram is from a 1990s document. The integrated circuit must be equipped with a heat sink. The table shows the component values for different output voltages.
This circuit is from old European documentation. R1 depends on the output voltage of the...
This circuit can be used in an experimental link for educational purposes. based on an integrated 4093....
This circuit provides just over ½ W to a small speaker. We found this configuration in an old...