This 20W amplifier was found in 283 circuits from the 90s. The MOSFET admits equivalents. The power supply must be dual, and the transistors must be mounted on good heat sinks.
We found this circuit in Radio Electronics Special Projects from 1992. The circuit turns on the...
This circuit acts on a relay disconnecting the load when the input voltage exceeds the set limit....
This experimental short-range transmitter came out in a 1972 publication and was designed to...