ETB-117 – Opto-Electronic Devices Characteristics Trainer is a complete educational setup designed to study the characteristics and behavior of various opto-electronic components such as LEDs, photodiodes, phototransistors, and LDRs (Light Dependent Resistors). This trainer provides the necessary circuitry, built-in regulated power supply, and three meters for voltage and current monitoring to facilitate precise and comparative measurements.

This model is highly effective in helping students understand how light interacts with semiconductors and how such devices are used in switching, sensing, and optical communication systems. It is ideal for semiconductor physics and optoelectronics laboratories.

Key Features:

• Enables study of key opto-electronic components: LED, photodiode, phototransistor, LDR

• Includes built-in regulated power supply for standalone operation

• Equipped with 3 meters to monitor voltage and current accurately

• Well-laid circuit design for easy understanding and hands-on learning

• Facilitates plotting V-I characteristics under different light conditions

• Enhances understanding of light-controlled electronic circuits

• Suitable for B.Tech/M.Sc. electronics and applied physics labs