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.
The circuit shown is from Motorola's Linear Interface ICs from 1992. The circuit uses a...
This nice function generator circuit with the XR2206 was found in the May 1977 Radio Electronics...
This voltage inverter allows you to raise the voltage of a battery to values as high as 140 V...