This circuit provides a few watts of output and can be used in the car as an auxiliary amplifier. Transistors must be mounted on heatsinks and the speaker can be 4 ohms or 8 ohms.
This circuit was published in a 1979 magazine, but it can still be easily assembled, as the...
This configuration found in GE documentation from the 90s, can also be seen elsewhere in this...
This simple circuit has good gain and can be implemented with any general-purpose transistor. The...