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The ETB-057 trainer is designed for experimentally verifying Child's Law (also known as the three-halves power law), which governs the behavior of thermionic emission in vacuum tubes. This law relates the anode current to the anode voltage in a high-vacuum diode under space-charge limited conditions. This educational model is equipped with a built-in power supply, a multi-range meter, and a standard voltmeter for precise measurement of anode current and voltage. The setup is housed in a Complete Ready (C.R.) and Verified Version (V.V.) format, ensuring reliability and ease of use for physics and electronics laboratories. Key Features:
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