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The ETB-109 trainer is designed to demonstrate the working principle of Zener diode-based voltage regulation in DC power supplies. It provides students with practical insight into how Zener diodes maintain a constant output voltage despite variations in input voltage or load conditions. The trainer features a built-in constant regulated (C.R.) power supply and two meters for accurate monitoring of voltage and current, helping learners visualize real-time changes and performance. It is an ideal educational tool for basic electronics, analog circuits, and power supply studies in academic and vocational training labs. Key Features:
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