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 is from a 1977 Radio Shack documentation. In it we have the activation of an LED for...
This circuit was suggested by National Semiconductor in one of its manuals. The LM108 integrated...
We found this circuit in a 1981 publication. Its purpose is to measure resistances of very low...