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.
Two operational amplifiers 741 are used in this circuit that must be powered by a symmetrical...
The direction of rotation of the M motor can be controlled by an Arduino or another...
Found in a 1965 Electronic Design, this circuit makes it possible to select signals with an...