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ETB-118 – Study of Crystal Detector Trainer is an instructional model designed to explore the working principle and characteristics of a crystal detector—a fundamental component in early radio receivers. This trainer enables students to understand how semiconductor diodes (such as germanium diodes) function as demodulators by detecting amplitude-modulated signals. The setup includes a built-in regulated power supply, two measuring meters for current and voltage monitoring, and all necessary circuit components to study the detection process. It is particularly useful in understanding AM signal detection, diode behavior, and signal rectification in RF circuits. Key Features:
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