NV6037 Desauty's and Schearing Bridge Trainer is useful for measuring very small value of Capacitance. By setting the null point, we can evaluate the unknown capacitance. To set this point, null detector with amplifier circuit is implemented on trainer board. NV6037 is based on the principle of Wheat Stone Bridge. A Function Generator is provided for Frequency and Amplitude variation. Null detector section includes differential amplifier, audio amplifier and speaker.