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.
This 1970 General Electric circuit is an equivalent configuration to the previous one with PNP...
This circuit was obtained in a Texas Instruments 2012 documentation, which consists of a current...
We obtained this circuit in a Maxim documentation from the 90s. The circuit is based on the...