The ETB-225 Feedback Amplifier Trainer is a well-structured educational setup designed to demonstrate the four basic types of transistor feedback amplifiers. This trainer helps students understand how feedback influences amplifier parameters such as gain, bandwidth, input/output impedance, and stability.

The system is built with clearly marked test points and includes inbuilt power supply and signal inputs to examine the following types:

1. Voltage Series Feedback Amplifier

2. Voltage Shunt Feedback Amplifier

3. Current Series Feedback Amplifier

4. Current Shunt Feedback Amplifier

Each configuration is mounted on a modular platform for easy comparison, enabling users to analyze performance and characteristic variations under different feedback conditions.

Key Features:

• Demonstrates all four types of transistor feedback amplifiers

• Inbuilt regulated power supply and signal generation support

• Clear schematic diagrams and labeling on the panel

• Onboard test points for waveform and gain analysis

• Designed for in-depth study in analog electronics labs

Educational Objectives:

• Understand the role and impact of feedback in amplifiers

• Study frequency response, gain variation, and stability

• Learn how feedback affects input/output impedance

• Compare and contrast different feedback configurations