This oscillator produces a sawtooth and square signals in the low frequency range. Other Operational Ampliers can be used. The power supply is simetric with voltages in the range between 6 and 12 V. Frequency depends on C1 and R1. Observe the adjustments for the virtual oscilloscope of the Multisim Blue for correct display of the waveshapes.
To download the simulation files and Netlist - click here (msb0033.zip)