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:
Enables verification of Child's three-halves law for vacuum diodes
Demonstrates the relationship between anode current and voltage
Includes power supply, 1 multi-range meter & 1 standard meter
Suitable for physics, thermionic emission, and vacuum tube studies
C.R. (Complete Ready) and V.V. (Verified Version) compliant for institutional use
Ideal for undergraduate labs in applied physics and electronics
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