This circuit with the LM741 operational amplifier can be applied to other operational amplifiers. We found it in the September 1989 Radio Electronics magazine.
This circuit was obtained from a 1994 publication. Its purpose is to digitally switch 5 audio...
This circuit, obtained from a 1965 magazine, can still be assembled using some modern equivalent...
This circuit for a decorative robot was found in the April 1988 Radio Electronics magazine. The...