This is the circuit of a European commercial amplifier. It was published in Radio Electronics magazine in September 1958 and has a power of 5 watts with good sound quality.
Found in an American 1980s documentation, this circuit generates high-intensity pulses for a...
This powerful FM transmitter was found in a 2002 documentation. The output transistors must be...
This circuit was obtained from a 1966 documentation. The transistors are of the time. The circuit...