An undergraduate laboratory experiment to build and characterize a thermionic triode for use as an audio amplifier
An undergraduate laboratory experiment to build and characterize a thermionic triode for use as an audio amplifier
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本科生实验室实验,用于构建和表征用作音频放大器的热电子三极管
DOI:
10.1088/1361-6404/aba997
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发表时间:
2020
影响因子:
0.7
通讯作者:
Murray A
中科院分区:
文献类型:
--
作者:
Murray A
Although largely superseded by transistors for small signal amplification, the thermionic valve (or tube) still finds use in high-fidelity audio amplifiers, in guitar amplifiers and in high-power radio and television transmitters, where their power to size scalability has advantages over solid state devices. In the undergraduate experiments detailed here students construct a triode inside a vacuum chamber, and investigate the effects of different designs on signal gain. The characteristics of their triodes are measured to determine the optimal condition for signal amplification. The triode is then used to amplify an audio signal to determine the frequency response, and they can listen to the results via headphones using an input signal of their choice. This experiment hence introduces students to vacuum technology, to electron beams and to analog electronics.
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影响因子:
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作者:
Child, CD
通讯作者:
Child, CD
DOI:
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2016
期刊:
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作者:
B. Lacsný;I. Štubňa
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I. Štubňa
DOI:
--
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Proceedings of the American Institute of Electrical Engineers
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2007
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2010
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O. R. Battaglia;C. Fazio;I. Guastella;R. M. Sperandeo
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