This Wien bridge oscillator was found in Radio Electronics from the 90s. The circuit uses the 741 which is a current component. The circuit requires a symmetrical power source.
SGS's L78xx is equivalent to the regular 78xx. The circuit was found in the SGS manual of linear...
This circuit was obtained in an English publication of 1993. It is an amplifier for...
Found in a Hands-On Electronics from the 90s, this circuit produces the dial tones of an old...