Study of Unregulated and Regulated Power Supply  Using Transistor and Zener diode is designed for in-depth study of both unregulated and regulated power supplies. This unit meticulously utilizes transistors and Zener diodes, showcasing fundamental principles in power electronics. Equipped with essential electronic components including ICs, capacitors, resistors, and potentiometers, it allows for hands-on circuit building and analysis. Housed in a robust metal box and featuring two analog meters for precise measurement, along with regulated dials for controlled adjustments, this trainer provides a comprehensive learning experience. Ideal for students and hobbyists, it offers a practical platform to explore power supply design.