The frequency of this type is oscillator is given by the RC network. Calculations can be found in the Mathematics for Electronics in this site. The circuit produces a sine low-frequency signal and any general-purpose NPN transistor can be used. The circuit also operates with PNP transistors inverting the power supply polarity.
![Figure 1 – Circuit used in the simulation
Figure 1 – Circuit used in the simulation](/images/sampledata/blue/msb0036_0001.gif)
![](/images/sampledata/blue/msb0036_0002.png)
To download the simulation files and Netlist - click here (msb0036.zip)