This is the traditional configuration of na Astable Multivibrator using two NPN ttransistor. Frequency is given by R3, R4, C1 and C2.In the site you will found calculations for this circuit. Power supply can range between 3 and 12 V. The signal is square and can be taken from the collector of any transistor. Any general purpose transistor as the BC548, 2N3904 or other can be used in the simulation. Circuit and Waveshape in the virtual oscilloscope of the Multisim Ble are given bellow. With the used values for the components frequency will be around 500 Hz.
To download the simulation files and Netlist - click here (msb0016e.zip)
