This circuit is from 1973 documentation. The transformer has 500 mA of current and the transistor can be the TIP32 mounted on a heat radiator.
This amplifier provides a power near to 1W. The supply must be made with a voltage of 9 V coming...
Maxim MAX20333 Adjustable Current Limit Switches Maxim Integrated makes available from Mouser...
We found this source with the CI 723, common at the time, in a 1989 paper. Power transistors must be...