The ETB-231 T & π Attenuator Trainer Kit is designed to provide hands-on experience in understanding the working principles and characteristics of T-type and π-type attenuator networks. These passive two-port networks are widely used in RF and audio frequency applications for signal level control without significant signal distortion. This educational kit includes onboard T and π networks with clearly marked terminals, a built-in power supply (if applicable), and test points for easy observation of signal attenuation. It is an essential trainer for electronics and communication engineering labs to demonstrate signal attenuation, impedance matching, and insertion loss practically.