This 9 W amplifier with transistors from the 60's was found in documentation of the time. The output transistors must be mounted on heat radiators and the power supply is included.
The integrated circuit used in this National Semiconductor project is not the most common and the...
In the figure we have the circuit of an amplifier for alternating signals with 10 times gain,...
I got this circuit from Hands-On Electronics, 1988. The American magazine no longer exists, but...