The ETB-256 Two Port Ladder Network Trainer is an advanced educational platform designed to demonstrate the properties of ladder-type two-port networks, widely used in communication and signal processing systems. This trainer enables users to measure and analyze different network parameters (Z, Y, h, ABCD) and understand signal propagation through cascaded elements. It comes with an integrated power supply, signal source, and clearly labeled test points, providing hands-on experience for students in electronics and electrical engineering.