Found in a 1947 publication, this circuit uses 4 parallel/push-pull tuber in the output stage. The circuit employs dual power supply with two rectifier tubes.
This circuit with the LM741 operational amplifier can be applied to other operational amplifiers. We...
This circuit came out in the American magazine Electronics Now, in a 1993 issue. The magazine no...
This small source was found in an English documentation from 1970. The diodes can be 1N4002 for...