Twin-T oscillator are a good solution for the production of low-frequency sinusoidal signals. The circuit show in figure 1 can be powered from voltages sources starting from 6 V (dual) and is adjusted by the trimpot. See in the section Mathematics for Electronics how to calculate the elements of the twin-T for a desired frequency.
To download the simulation files and Netlist - click here (msb0117.zip)
