With an output power of 1.5 W under a 12 V supply, this circuit makes use of transistors that are still common today. Power transistors must be mounted on heat sinks.
This circuit appears in similar versions elsewhere on this site. The transformer is 110 V or 220 V...
This is one of the channels of an amplifier suggested by Westinghouse in 1970s documentation. The circuit...
The XR2206 is not a common component today, but if you have one you can build this function...