RC phase shift oscillator

Aim: -

To determine the frequency of the RC phase shift oscillator.

Apparatus: -

BJT, resistor, capacitor, CRO, breadboard, connection wire

Principle: - The BJT picks up small fluctuations at the input and amplifies them with a 180-degree phase shift 

 

Theory:-

An oscillator converts AC to DC RC phase shift oscillator uses there identical RC blocks which act as feedback of oscillation is given by f= 1/1/2πRC√6 

 

 

 

Procedure:-

Identify the pin details of the transistor and test it using a millimeter. Set up the circuit on the breadboard as shown in the figure.

Calculate the frequency from CRO display f=1/T

Verify the practical frequency with the theoretical value.

 

Calculation:-

Theoretical frequency: -   

 f=1/2πRC√6

 

Result: -

The frequency of the RC phase shift oscillator is determined and verified with the theoretical value. They are nearly equal.