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The ETB-218 is a dedicated trainer unit for studying the Instrumentation Amplifier configuration—commonly used in precision analog signal processing, sensor signal amplification, and biomedical instrumentation. Designed for electronics and communication engineering labs, this unit demonstrates how small differential voltages can be accurately amplified while rejecting common-mode noise. It features a complete instrumentation amplifier circuit using high-precision operational amplifiers (e.g., OP07, LM324, or equivalent) along with a built-in regulated dual power supply, test points, and provision for connecting external input signals. It also allows students to adjust gain and observe the output on a CRO or voltmeter for practical analysis. Key Features:
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