The ETB-242 Op-Amp Characteristics Trainer is specifically designed for studying the key parameters of operational amplifiers, such as input offset voltage, input bias current, slew rate, common-mode rejection ratio (CMRR), and power supply rejection ratio (PSRR). This trainer provides a detailed hands-on platform to analyze the electrical behavior and performance characteristics of a general-purpose Op-Amp (like UA741 or equivalent). Equipped with a built-in regulated power supply and test points, it simplifies experimental procedures, making it ideal for analog electronics and instrumentation labs.