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.
This circuit appears in several versions in publications of the time and can be modified by...
This transistorized “grid dip” oscillator was found at Radio Electronics in June 1953. The...
This 12 V symmetrical power supply provides a current of the order of 100 mA according to the...