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 transistor tester circuit has the advantage of using a constant current source in the tests....
This circuit is from a 1977 publication for radio amateurs presenting a crowbar protection. The...
Suggested by a 1968 documentation, this circuit limits the current of a regulator and can be...